Merge lp:~mttronchetti/novacut/container into lp:novacut

[Matteo Ronchetti]

My work on the container

it is accessible with novacut-gtk --page=bucket2.html#projectId

=== added file 'ui/bucket2.css'
--- ui/bucket2.css	1970-01-01 00:00:00 +0000
+++ ui/bucket2.css	2012-08-14 17:10:21 +0000
@@ -0,0 +1,640 @@
+* {
+    font-family: Ubuntu;
+    line-height: 24px;
+    -webkit-user-select: none;
+}
+
+img {
+    -webkit-user-select: none;
+}
+
+.fgrid_row {
+    white-space: nowrap;
+    font-size: 0;
+    line-height: 0;
+}
+
+.fgrid_row > * {
+    font-size: 15px;
+    display: inline-block;
+    margin: 8px;
+    box-sizing: border-box !important;
+    vertical-align: top;
+}
+
+
+.fgrid_cell > * {
+    display: block;
+    width: 100%;
+    box-sizing: border-box !important;
+}
+
+.fgrid_1 {
+    width: 50px;
+}
+
+.fgrid_2 {
+    width: 116px;
+}
+
+.fgrid_3 {
+    width: 182px;
+}
+
+.fgrid_4 {
+    width: 248px;
+}
+
+.fgrid_5 {
+    width: 314px;
+}
+
+.fgrid_6 {
+    width: 380px;
+}
+
+.fgrid_7 {
+    width: 446px;
+}
+
+.fgrid_8 {
+    width: 512px;
+}
+
+.fgrid_9 {
+    width: 578px;
+}
+
+.fgrid_10 {
+    width: 644px;
+}
+
+.fgrid_11 {
+    width: 710px;
+}
+
+.fgrid_12 {
+    width: 776px;
+}
+
+#flyout .version {
+    text-shadow: 0px 0px 10px #e81f3b;
+}
+
+
+#flyout_capture {
+    position: fixed;
+    z-index: 10;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    /*
+    background: rgba(0,0,0,0.5);
+    */
+}
+
+
+#flyout {
+    position: absolute;
+    top: 18px;
+    right: 18px;
+    width: 800px;
+    height: 448px;
+    /*
+    background: -webkit-linear-gradient(top, #333, #2a2a2a);
+    */
+    background-color: rgba(15, 15, 15, 0.9);
+    box-shadow: 0px 0px 10px 0px #e81f3b;
+    border-radius: 12px;
+    font-size: 16px;
+    color: #ddd;
+    box-sizing: border-box !important;
+    padding: 4px;
+}
+
+#flyout a {
+    color: #e81f3b;
+    text-decoration: none;
+}
+
+#flyout a:hover {
+    color: #f82f4b;
+    text-decoration: underline;
+}
+
+#logo {
+    position: fixed;
+    z-index: 11;
+    right: 6px;
+    top: 6px;
+    width: 48px;
+    height: 48px;
+    -webkit-transition: -webkit-transform 300ms linear;
+}
+
+#logo.open {
+    -webkit-transform: rotate(-180deg);   
+}
+
+#open_clips {
+    z-index: 4;
+    position: fixed;
+    top: 0;
+    right: 50%;
+    width: 80px;
+    color: #ddd;
+    padding-left: 6px;
+    padding-right: 6px;
+    cursor: default;
+    box-shadow: 0px 1px 4px 0px rgba(0,0,0,0.6);
+    text-align: center;
+    border-radius: 0 0 2px 2px;
+    border:1px solid transparent;
+    border-top:none;
+    border-bottom:1px solid #383838;
+    background: -webkit-linear-gradient(top, #444, #333);
+    text-shadow: 0px -1px 0px rgba(0,0,0,0.5);
+}
+
+#clips_outer {
+    z-index: 3;
+    position: fixed;
+    top: -140px;
+    height: 139px;
+    left: 0;
+    right: 0;
+    overflow: hidden;
+    -webkit-transition: top 250ms ease-in-out;
+    box-shadow: 0px 2px 6px 0px rgba(0,0,0,0.6);
+}
+
+
+#clips_outer.open {
+    top: 0px;
+}
+
+.grid_row {
+    font-size: 0;
+    white-space: nowrap;
+    font-size: 0;
+}
+
+#clips_nav {
+    height: 41px;
+}
+
+#clips_nav label, #clips_nav select {
+    margin: 8px;
+}
+
+
+#clips {
+    width: 100%;
+    overflow-y: hidden;
+    overflow-x: scroll;
+    white-space: nowrap;
+    font-size: 0;
+    line-height: 0;
+    height: 97px;
+    
+    /*
+    Dear James, you are looking especially tall today, and tough and handsome.
+    Could you please make this scrollbar less horible looking?
+    
+    Love,
+    Jason
+    */
+}
+
+::-webkit-scrollbar{
+    width:5px;
+    height:5px;
+    background:#222;
+}
+
+::-webkit-scrollbar-thumb{
+    border-radius:2px;
+    background:#999;
+}
+
+#clips img {
+    width: 160px;
+    height: 90px;
+    display: inline-block;
+    border: 1px solid #333;
+    -webkit-user-select: none;
+}
+
+#clips img.selected {
+    border-color: #e81f3b;
+}
+
+#bucket {
+    position: fixed;
+    top: 0px;
+    bottom: 246px;
+    left: 0;
+    right: 0;
+    /*
+    background: #333;
+    */
+    background: #301438;
+    overflow: hidden;
+}
+
+.seq-preview {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 246px;
+    z-index: 3;
+    background-color: black;
+}
+
+.seq-preview video {
+    position: absolute;
+    top: 0px;
+    left: 0px;
+    width: 100%;
+    height: 100%;
+}
+
+
+#sequence {
+    position: fixed;
+    height: 221px;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    background-color: #eee;
+    
+    overflow: hidden;
+    white-space: nowrap;
+    font-size: 0;
+    line-height: 0;
+
+    padding-top: 25px;
+    background-image: url(grip-short.png);
+    /*
+    background-image: url(grip-short.png), -webkit-linear-gradient(top, #222, #333);
+    */
+    background-repeat: repeat-x;
+}
+
+.slice {
+    border-top: 1px solid #666;
+    border-left: 1px solid #555;
+    border-right: 1px solid #444;
+    border-bottom:1px solid #333;
+}
+
+.slice.selected {
+    border-color: #e81f3b;
+    z-index: 1;
+}
+
+.slice, .slice * {
+    -webkit-user-select: none;
+}
+
+#bucket .slice {
+    position: absolute;
+    box-shadow: 0px 2px 5px 1px rgba(0,0,0,0.5);
+    
+    -webkit-transition-timing-function: ease;
+    -webkit-transition-duration: 250ms;
+    -webkit-transition-property: left, top;
+}
+
+#sequence .slice {
+    display: inline-block;
+}
+
+
+.frame {
+    position: relative;
+}
+
+.frame div {
+    position: absolute;
+    top: 0;
+    right: 0;
+    padding: 2px 6px;
+
+    cursor: default;
+    text-align: right;
+    font-family: "Ubuntu Mono";
+    font-size: 14px;
+    line-height: 1.6em;
+    font-weight: bold;
+    color: white;
+    text-shadow: 0 0 2px black;
+    /*
+    -webkit-text-stroke: 1px #000;
+    */
+}
+
+.frame img {
+    margin: 0;
+    padding: 0;
+    border: none;
+    display: block;
+    background-color: white;
+}
+
+/*
+Interesting 16:9 thumbnail sizes we might want to use:
+    112 63
+    128 72
+    144 81
+    160 90
+    176 99
+    192 108
+    208 117
+    224 126
+*/
+
+#bucket img {
+    width: 128px;
+    height: 72px;
+}
+
+#sequence img {
+    width: 192px;
+    height: 108px;
+}
+
+
+.indicator {
+    height: 3px;
+    /*background:-webkit-linear-gradient(top, #111, #222);*/
+    background-color: #333;
+    position: relative;
+    pointer-events: none;
+}
+
+.indicator div {
+    position: absolute;
+    top: 1px;
+    bottom: 1px;
+    left: 0%;
+    right: 0%;
+    background:-webkit-linear-gradient(top, #ddd, #fff);
+}
+
+.indicator div:before{
+    position:absolute;
+    top:-1px;
+    bottom:-1px;
+    left:0px;
+    width:1px;
+    background:white;
+    content:"";
+}
+
+.indicator div:after{
+    position:absolute;
+    top:-1px;
+    bottom:-1px;
+    right:0px;
+    width:1px;
+    background:white;
+    content:"";
+}
+
+
+
+.over {
+    margin-left: 194px;
+}
+
+.over-right {
+    margin-right: 194px;
+}
+
+
+.right {
+    position: relative;
+    left: 194px;
+}
+
+.left {
+    position: relative;
+    left: -194px;
+} 
+
+.animated {
+    position: relative;
+    -webkit-transition: left 150ms ease;
+}
+
+.grabbed {
+    -webkit-transition-property: none !important;
+    position: fixed !important;
+}
+
+
+#roughcut {
+    position: fixed;
+    top: 139px;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    background-color: black;
+    z-index: 4;
+}
+
+
+
+#roughcut .frames {
+    position: absolute;
+    left: 0;
+    right: 0;
+    bottom: 30px;
+    font-size: 0px;
+    line-height: 0px;
+}
+
+.videoframe {
+    display: inline-block;
+    width: 50%;
+    position: relative;
+}
+
+
+.videoframe video {
+    pointer-events: none;
+    width: 100%;
+    margin: 0;
+    display: block;
+}
+
+.videoframe div {
+    position: absolute;
+    top: 0;
+    right: 0;
+    padding: 2px 6px;
+
+    cursor: default;
+    text-align: right;
+    font-family: "Ubuntu Mono";
+    font-size: 16px;
+    line-height: 1.6em;
+    font-weight: bold;
+    color: white;
+    text-shadow: 0 0 2px black;
+}
+
+
+
+#roughcut .scrubber {
+    position: absolute;
+    bottom: 0;
+    height: 30px;
+    left: 0;
+    right: 0;
+    background-color: #999;
+}
+
+
+#roughcut .scrubber * {
+    pointer-events: none;
+}
+
+#roughcut .bar {
+    position: absolute;
+    top: 4px;
+    bottom: 4px;
+    background-color: #e81f3b;
+}
+
+#roughcut .playhead {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    width: 2px;
+    background-color: green;
+    /*
+    -webkit-transition: left 150ms linear;
+    */
+}
+
+#player {
+    position: fixed;
+    z-index: 20;
+    background-color: black;
+    top: 0;
+    bottom: 246px;
+    left: 0;
+    right: 0;
+}
+
+#player video {
+    position: absolute;
+    bottom: 0;
+    width: 100%;
+    height: 100%;
+    margin: 0;
+    pointer-events: none;
+}
+
+#shortcuts{
+	position:fixed;
+    background-color: rgba(15, 15, 15, 0.85);
+text-shadow: 2px 2px 3px rgba(255, 0, 0, 0.5);
+    box-shadow: 0px 0px 10px 0px #e81f3b;
+    border-radius: 12px;
+    font-size: 16px;
+	display:none;
+	z-index:999;
+}
+#shortcuts table{
+	padding: 20px;
+}
+#shortcuts td{
+	padding-top :4px;
+	padding-left: 15px;
+	padding-right: 15px;
+}
+
+.cont{
+border-top: 1px solid rgb(102, 102, 102);
+border-left: 1px solid rgb(85, 85, 85);
+border-right: 1px solid rgb(68, 68, 68);
+border-bottom: 1px solid rgb(51, 51, 51);
+}
+
+#bucket .cont{
+position: absolute;
+min-width:128px;
+height:147px;
+}
+
+.cont ,.cont * {
+-webkit-user-select: none;
+}
+
+.cont{
+/*-webkit-animation-duration: 0.2s;
+-webkit-animation-iteration-count: 1;
+-webkit-animation-timing-function: ease;*/
+background:gray;
+/*position: fixed;*/
+}
+
+
+/*#sequence .cont{
+height: 219px !important;
+}*/
+
+/*#sequence .comp div{
+height: 109px;
+}*/
+
+
+.cont .slice{
+position: relative !important;
+float: left;
+}
+
+#sequence .cont{
+display: inline-block;
+height:219px !important;
+}
+
+.top{
+height: 75px;
+}
+
+.bot{
+height: 72px;
+}
+
+#sequence .top{
+height: 111px;
+}
+
+#sequence .bot{
+height: 108px;
+}
+
+.cont.selected{
+border-color: rgb(232, 31, 59);
+z-index: 1;
+}
+
+@-webkit-keyframes enter{
+from{-webkit-transform: translateX(-200px) translateY(-200px) scale(0.3);}
+to{-webkit-transform: translateX(0px) translateY(0px) scale(1);}
+}
+
+.selector{
+border: 1px solid red;
+position:absolute;
+box-shadow: inset 0px 0px 10px rgba(255,0,0,0.5);
+border-radius: 5px;
+background-color: rgba(255, 0, 0, 0.13);
+z-index: 10;
+} 

=== added file 'ui/bucket2.html'
--- ui/bucket2.html	1970-01-01 00:00:00 +0000
+++ ui/bucket2.html	2012-08-14 17:10:21 +0000
@@ -0,0 +1,94 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <link rel="stylesheet" href="/_apps/userwebkit/base.css" />
+    <link rel="stylesheet" href="/_apps/dmedia/common.css" />
+    <link rel="stylesheet" href="/_apps/dmedia/grid.css" />
+    <link rel="stylesheet" href="bucket2.css" />
+    <script src="/_apps/userwebkit/couch.js"></script>
+    <script src="/_apps/userwebkit/base.js"></script>
+    <script src="novacut2.js"></script>
+    <script src="bucket2.js"></script>
+</head>
+
+<body>
+<div id="open_clips">Clips</div>
+<div id="clips_outer" class="bar">
+    <div id="clips_nav">
+        <label>Dmedia Project: <select id="dmedia_project"></select></lable>
+    </div>
+    <div id="clips"></div>
+</div>
+
+<div id="flyout_capture" class="hide">
+<div id="flyout">
+    <div class="fgrid_row">
+        <a class="fgrid_4" href="projects.html"><strong>Projects</strong></a>
+        <button class="fgrid_3" id="render-btn" onclick="UI.render()">Render</button>
+    </div>
+    <div class="fgrid_row">
+        <a class="fgrid_4" href="projects.html">(Most recent project)</a>
+    </div>
+    <div class="fgrid_row">
+        <a class="fgrid_4" href="projects.html">(2nd most recent project)</a>
+    </div>
+    <div class="fgrid_row">
+        <a class="fgrid_4" href="projects.html">(3rd most recent project)</a>
+    </div>
+
+    <div class="fgrid_row"><strong class="fgrid_2">.</strong></div>
+    <div class="fgrid_row"><strong class="fgrid_2">.</strong></div>
+    <div class="fgrid_row"><strong class="fgrid_2">.</strong></div>
+    <div class="fgrid_row"><strong class="fgrid_2">.</strong></div>
+    <div class="fgrid_row"><strong class="fgrid_2">.</strong></div>
+    <div class="fgrid_row"><strong class="fgrid_2">.</strong></div>
+
+    <div class="fgrid_row">
+    <strong class="fgrid_4 version">Novacut 12.08.0</strong>
+<a onclick="showShort(event);" style="cursor: pointer; margin-right:135px;">Keyboard Shortcuts</a>
+    <a href="http://www.kickstarter.com/projects/novacut/novacut-pro-video-editor/backers" class="fgrid_5">Thanks to our Kickstarter backers!</a>
+    </div>
+</div>
+</div>
+
+<div id="bucket">
+<div id="shortcuts" >
+<table border="0">
+  <tr>
+    <td>D</td>
+    <td>Duplicate slice</td>
+  </tr>
+  <tr>
+    <td>Del</td>
+    <td>Delete slice</td>
+  </tr>
+  <tr>
+    <td>Space bar</td>
+    <td>Play/Pause</td>
+  </tr>
+  <tr>
+    <td>Esc</td>
+    <td>Close</td>
+  </tr>
+  <tr>
+    <td>Mouse wheel</td>
+    <td>Move of one frame</td>
+  </tr>
+  <tr>
+    <td>Shift+Mouse Wheel</td>
+    <td>Move of ten frames</td>
+  </tr> 
+</table> 
+</div>
+</div>
+<div id="sequence" clas="lower"></div>
+<div id="roughcut" class="hide">
+    <div class="grid_row">
+        <button class="grid_2" id="close_roughcut">Done</button>
+        <button class="grid_2" id="create_slice">New Slice</button>
+    </div>
+</div>
+</body>
+
+</html>

=== added file 'ui/bucket2.js'
--- ui/bucket2.js	1970-01-01 00:00:00 +0000
+++ ui/bucket2.js	2012-08-14 17:10:21 +0000
@@ -0,0 +1,2656 @@
+"use strict";
+
+
+var Thumbs = {
+    db: new couch.Database('thumbnails'), 
+
+    docs: {},
+
+    has_frame: function(file_id, index) {
+        if (!Thumbs.docs[file_id]) {
+            try {
+                Thumbs.docs[file_id] = Thumbs.db.get_sync(file_id);
+            }
+            catch (e) {
+                return false;
+            }
+        }
+        if (Thumbs.docs[file_id]._attachments[index]) {
+            return true;
+        }
+        return false;
+    },
+
+    q: {},
+
+    active: {},
+
+    need_init: true,
+
+    init: function() {
+        console.assert(Thumbs.need_init);
+        Thumbs.need_init = false;
+        var ids = Object.keys(Thumbs.q);
+        if (ids.length == 0) {
+            Thumbs.frozen = false;
+            return;
+        }
+        Thumbs.db.post(Thumbs.on_docs, {keys: ids}, '_all_docs', {include_docs: true});
+    },
+
+    on_docs: function(req) {
+        try {
+            var rows = req.read().rows;
+            rows.forEach(function(row) {
+                var id = row.key;
+                if (row.doc) {
+                    Thumbs.docs[id] = row.doc;
+                }
+                else {
+                    Thumbs.docs[id] = {'_id': id, '_attachments': {}};
+                }
+            });
+        }
+        catch (e) {
+            var ids = Object.keys(Thumbs.q);
+            ids.forEach(function(id) {
+                Thumbs.docs[id] = {'_id': id, '_attachments': {}};
+            });
+        }
+        Thumbs.unfreeze();
+    },
+
+    enqueue: function(frame) {
+        if (!Thumbs.q[frame.file_id]) {
+            Thumbs.q[frame.file_id] = {};
+        }
+        Thumbs.q[frame.file_id][frame.key] = frame;
+    },
+
+    frozen: false,
+
+    freeze: function() {
+        Thumbs.frozen = true;
+    },
+    
+    unfreeze: function() {
+        console.log('unfreeze');
+        if (this.need_init) {
+            this.init();
+            return;
+        }
+        Thumbs.frozen = false;
+        Thumbs.flush();
+    },
+
+    flush: function() {
+        if (Thumbs.frozen) {
+            return;
+        }
+        var ids = Object.keys(Thumbs.q);
+        if (ids.length == 0) {
+            console.log('no thumbnails in queue');
+            return;
+        }
+        while (ids.length > 0 && Object.keys(Thumbs.active).length <= 4) {
+            var id = ids.shift();
+            if (Thumbs.active[id]) {
+                console.log('already waiting for ' + id);
+                continue;
+            }
+            var frames = Thumbs.q[id];
+            delete Thumbs.q[id];
+
+            var needed = [];
+            var key, frame;
+            for (key in frames) {
+                frame = frames[key];
+                if (Thumbs.has_frame(id, frame.index)) {
+                    frame.request_thumbnail.call(frame);
+                }
+                else {
+                    needed.push(frame.index);
+                }
+            }
+            if (needed.length > 0) {
+                Thumbs.active[id] = frames;
+                Hub.send('thumbnail', id, needed);
+            }
+        }
+    },
+
+    on_thumbnail_finished: function(file_id) {
+        if (!Thumbs.active[file_id]) {
+            return;
+        }
+        var frames = Thumbs.active[file_id];
+        delete Thumbs.active[file_id];
+        Thumbs.docs[file_id] = Thumbs.db.get_sync(file_id);
+        
+        var key, frame;
+        for (key in frames) {
+            frame = frames[key];
+            if (Thumbs.has_frame(file_id, frame.index)) {
+                frame.request_thumbnail.call(frame);
+            }
+        }
+        Thumbs.flush();
+    },
+}
+
+Hub.connect('thumbnail_finished', Thumbs.on_thumbnail_finished);
+
+
+function $halt(event) {
+    event.preventDefault();
+    event.stopPropagation();
+}
+
+
+function $unparent(id) {
+    var child = $(id);
+    if (child && child.parentNode) {
+        child.parentNode.removeChild(child);
+    }
+    return child;
+}
+
+
+function $position(element) {
+    element = $(element);
+    var pos = {
+        left: element.offsetLeft,
+        top: element.offsetTop,
+        width: element.offsetWidth,
+        height: element.offsetHeight,
+    };
+    while (element.offsetParent) {
+        element = element.offsetParent;
+        pos.left += (element.offsetLeft - element.scrollLeft);
+        pos.top += (element.offsetTop - element.scrollTop);
+    }
+    pos.right = pos.left + pos.width;
+    pos.bottom = pos.top + pos.height;
+    return pos;
+}
+
+
+function $hscroll(child, center) {
+    child = $(child);
+    if (!child.parentNode) {
+        return;
+    }
+    var parent = child.parentNode
+    //var mid = child.offsetLeft + (child.offsetWidth - parent.clientWidth) / 2;
+    if (child.offsetLeft < parent.scrollLeft) {
+        parent.scrollLeft = child.offsetLeft;
+    }
+    else if (child.offsetLeft + child.offsetWidth > parent.scrollLeft + parent.clientWidth) {
+        parent.scrollLeft = child.offsetLeft + child.offsetWidth - parent.clientWidth;
+    }
+}
+
+
+
+var DragEvent = function(event, element) {
+    $halt(event);
+    this.x = event.clientX;
+    this.y = event.clientY;
+    this.ox = this.x;
+    this.oy = this.y;
+    this.dx = 0;
+    this.dy = 0;
+    
+    if (element) {
+        var pos = $position(element);
+        this.offsetX = this.x - pos.left;
+        this.offsetY = this.y - pos.top;
+    }
+    else {    
+        this.offsetX = event.offsetX;
+        this.offsetY = event.offsetY;
+    }
+
+    this.ondragstart = null;
+    this.ondragcancel = null;
+    this.ondrag = null;
+    this.ondrop = null;
+    this.started = false;
+
+    var self = this;
+    var tmp = {};
+    tmp.on_mousemove = function(event) {
+        self.on_mousemove(event);            
+    }
+    tmp.on_mouseup = function(event) {
+        window.removeEventListener('mousemove', tmp.on_mousemove);
+        window.removeEventListener('mouseup', tmp.on_mouseup);
+        self.on_mouseup(event);
+    }
+    window.addEventListener('mousemove', tmp.on_mousemove);
+    window.addEventListener('mouseup', tmp.on_mouseup);
+}
+DragEvent.prototype = {
+    update: function(event) {
+        $halt(event);
+        this.event = event;
+        var html = document.body.parentNode;
+        this.x = Math.max(0, Math.min(event.clientX, html.clientWidth));
+        this.y = Math.max(0, Math.min(event.clientY, html.clientHeight));
+//        this.x = event.clientX;
+//        this.y = event.clientY;
+        this.dx = this.x - this.ox;
+        this.dy = this.y - this.oy;
+    },
+
+    on_mousemove: function(event) {
+        this.update(event);
+        if (!this.started) {
+            if (Math.max(Math.abs(this.dx), Math.abs(this.dy)) > 3) {
+                this.started = true;
+                if (this.ondragstart) {
+                    this.ondragstart(this);
+                }   
+            }
+            else {
+                return;
+            }
+        }
+        if (this.ondrag) {
+            this.ondrag(this);
+        }
+    },
+
+    on_mouseup: function(event) {
+        if (!this.started) {
+            if (this.ondragcancel) {
+                this.ondragcancel(this);
+            }
+            return;
+        }
+        if (this.ondrop) {
+            this.update(event);
+            this.ondrop(this);
+        }
+    },
+}
+
+
+var Frame = function(file_id, key) {
+    this.file_id = file_id;
+    this.key = key;
+    this.index = null;
+    this.element = $el('div', {'class': 'frame'});
+    this.img = $el('img');
+    this.element.appendChild(this.img);
+    this.info = $el('div');
+    this.element.appendChild(this.info);
+}
+Frame.prototype = {
+    destroy: function() {
+        $unparent(this.info);
+        $unparent(this.img);
+        $unparent(this.element);
+        delete this.info;
+        delete this.img;
+        delete this.element;
+    },
+
+    set_index: function(index) {
+        if (index === this.index) {
+            return;
+        }
+        this.index = index;
+        this.info.textContent = index + 1;
+        Thumbs.enqueue(this);
+    },
+
+    request_thumbnail: function() {
+        this.img.src = Thumbs.db.att_url(this.file_id, this.index.toString());
+    },
+
+}
+
+
+function SliceIndicator() {
+    this.element = $el('div', {'class': 'indicator'});
+    this.bar = $el('div');
+    this.element.appendChild(this.bar);
+}
+SliceIndicator.prototype = {
+    destroy: function() {
+        $unparent(this.bar);
+        $unparent(this.element);
+        delete this.bar;
+        delete this.element;
+    },
+
+    update: function(start, stop, count) {
+        var left = 100 * start / count;
+        var right = 100 - (100 * stop / count);
+        this.bar.style.left = left.toFixed(1) + '%';
+        this.bar.style.right = right.toFixed(1) + '%';  
+    },
+}
+
+
+function wheel_delta(event) {
+    var delta = event.wheelDeltaY;
+    if (delta == 0) {
+        return 0;
+    }
+    var scale = (event.shiftKey) ? -10 : -1;
+    return scale * (delta / Math.abs(delta));
+}
+
+function addCont(){
+    var doc = create_cont();
+    console.log(UI.session.save(doc));
+    console.log(doc);
+    var cont = new Cont(UI.session,doc);
+    UI.bucket.appendChild(cont.element);
+    UI.sequence.do_reorder();    
+}
+
+//TODO:HERE
+var Cont = function(session,doc){
+    session.subscribe(doc._id, this.on_change, this);
+    UI.conts.push(this);
+    this.doc = doc;
+    this.id = doc._id;
+    this.session=session;
+    this.element = $el('div', {'class': 'cont','id': doc._id});    
+    this.list = $el('ul', {'style': 'display = "none"'});
+    this.comp = $el('div', {'class': 'comp'})
+    this.element.appendChild(this.list);
+    this.element.appendChild(this.comp);
+    this.element.onmousedown = $bind(this.on_mousedown, this);
+    this.element.ondblclick = $bind(this.on_dblclick, this);
+    this.element.onclick = $bind(this.on_click, this);
+    this.expanded = true;
+    this.over = null;
+    this.x = 150;
+    this.y = 150;
+    this.width = 192 + 2;
+    this.threshold = this.width * 0.65;
+    this.on_change(doc);
+    this.close();
+}
+
+Cont.prototype = {
+    set x(value) {
+        if (typeof value == 'number') {
+            this.element.style.left = value + 'px';
+        }
+        else {
+            this.element.style.left = null;
+        }
+    },
+
+    set y(value) {
+        if (typeof value == 'number') {
+            this.element.style.top = value + 'px';
+        }
+        else {
+            this.element.style.top = null;
+        }
+    },
+
+    get x() {
+        if(this.element)return parseInt(this.element.style.left);
+        else return -1;
+    },
+
+    get y() {
+        if(this.element)return parseInt(this.element.style.top);
+        else return -1;
+    },
+    
+    get inbucket() {
+        return this.element.parentNode.id == 'bucket';
+    },
+    
+    get frombucket() {
+        return this.parent.id == 'bucket';
+    },
+    
+    save: function(){
+        this.doc.node.src = Array();
+        for(var a in this.list.childNodes){
+            if(this.list.childNodes[a].id)this.doc.node.src.push(this.list.childNodes[a].id);
+        }
+        this.session.save(this.doc,true);
+    },
+
+    refresh: function(){
+        this.comp.innerHTML = '<div class="top">' + this.list.firstChild.firstChild.firstChild.outerHTML + '</div>';
+        this.comp.innerHTML += '<div class="bot">'+ this.list.lastChild.lastChild.firstChild.outerHTML + '</div>';
+    },
+    
+    expand: function(){
+        this.expanded = true;
+        this.list.style.display = 'block';
+        this.comp.style.display = 'none';
+    },
+    close: function(){
+        if(!this.expanded)return;
+        this.expanded = false;
+        console.log("close");
+        this.comp.innerHTML = "";
+        var len = this.list.childNodes.length;
+        console.log(len);       
+        if(len){
+            this.refresh();
+        }else{
+            if(len == 1){
+                console.log("save frist child");
+                var el = this.list.childNodes[0];
+                el.style.top = this.y + 'px';
+                el.style.left = this.x + 'px';
+                el.style.marginLeft = '0px';
+                el.style.marginRight = '0px';                
+                $unparent(el); 
+                UI.bucket.appendChild(el);
+            }
+            UI.bucket.removeChild(this.element);
+            UI.sequence.do_reorder();
+            for(var a in UI.conts)if(UI.conts[a].id == this.id)UI.conts.splice(a,1);
+            return;
+        }
+        this.list.style.display = 'none';
+        this.comp.style.display = 'block';
+        
+    },
+    reset_margin: function(){
+        for(var a = 0;a<this.list.childNodes.length;a++){
+            this.list.childNodes[a].style.marginLeft = 0 + 'px';
+            this.list.childNodes[a].style.marginRight = 0 + 'px';
+        }
+    },
+    slice_on: function(x){
+        if(this.list.childNodes.length == 0){
+            this.pos = -1;
+            return;
+        }
+        this.reset_margin();
+        this.pos = parseInt(x/130);
+        if(this.pos >= this.list.childNodes.length) this.list.lastChild.style.marginRight = 130 + 'px';
+        else if(this.list.childNodes[this.pos].classList[1] != 'selected') this.list.childNodes[this.pos].style.marginLeft = 130 + 'px';
+    },
+    on_dblclick: function(event) {
+        this.expand();
+    },  
+    on_mousedown: function(event) {
+        UI.select(this.doc._id);
+        if (UI.player.active) {
+            UI.player.hold();
+        }
+        this.pos = $position(this.element);
+        this.dnd = new DragEvent(event, this.element);
+        this.dnd.ondragcancel = $bind(this.on_dragcancel, this);
+        this.dnd.ondragstart = $bind(this.on_dragstart, this);
+        this.dnd.ondrag = $bind(this.on_drag, this);
+        this.dnd.ondrop = $bind(this.on_drop, this);
+    },
+
+    on_dragcancel: function(dnd) {
+        console.log('dragcancel');
+        if (UI.player.active) {
+            UI.player.resume();
+        }
+        this.stop_scrolling();
+        if (this.inbucket && UI.bucket.lastChild != this.element) {
+            console.log('moving to end of bucket');
+            $unparent(this.element);
+            UI.bucket.appendChild(this.element);
+            UI.sequence.do_reorder();
+        }
+    },
+
+    on_dragstart: function(dnd) {
+        console.log('dragstart');
+        this.offsetX = this.dnd.offsetX;
+        this.offsetY = this.dnd.offsetY;
+        this.offsetWidth = this.element.offsetWidth;
+        this.offsetHeight = this.element.offsetHeight;
+
+        this.parent = this.element.parentNode;
+        this.x = dnd.x - this.offsetX;
+        if (this.inbucket) {
+            this.y = dnd.y - this.offsetY;
+        }
+        else {
+            this.nextSibling = this.element.nextSibling;
+            if (this.element.nextSibling) {
+                this.over = this.element.nextSibling;
+                this.over.classList.add('over'); 
+            }
+            else if (this.element.previousSibling) {
+                this.over = this.element.previousSibling;
+                this.over.classList.add('over-right'); 
+            }
+            this.target = this.element;
+            var seq = this.element.parentNode;
+            var i, child;
+            for (i=0; i<seq.children.length; i++) {
+                child = seq.children[i];
+                if (child == this.element) {
+                    this.i = i;
+                    this.orig_i = i;
+                }
+            }
+            this.y = UI.sequence.top - 14;
+        }
+        this.element.classList.add('grabbed');
+    },
+
+    on_drag: function(dnd) {
+        var top = UI.sequence.top;
+        var height = this.element.clientHeight;
+        var y = dnd.y - this.offsetY;
+        var f = 0.65;
+        if (this.inbucket) {
+            if (y > top - height * (1 - f)) {
+                this.move_into_sequence(dnd);
+            }
+        }
+        else {
+            if (y < top - height * f) {
+                this.move_into_bucket(dnd);
+            }
+        }
+        if (this.inbucket) {
+            this.on_mousemove_bucket(dnd);
+        }
+        else {
+            this.on_mousemove_sequence(dnd);
+        }
+        this.on_mousemove_bucket(dnd);  
+    },
+    on_click: function(dnd){
+        dnd.stopPropagation();
+    },
+
+ on_drop: function(dnd) {
+        this.stop_scrolling();
+        this.element.classList.remove('grabbed');
+        this.clear_over();
+        UI.sequence.reset();
+        if (this.inbucket) {
+            if (UI.player.active) {
+                UI.player.hide();
+            }
+            if (UI.bucket.lastChild != this.element) {
+                $unparent(this.element);
+                UI.bucket.appendChild(this.element);
+            }
+            var pos = $position(UI.bucket);
+            this.x = Math.max(0, dnd.x - this.offsetX - pos.left);
+            this.y = Math.max(0, dnd.y - this.offsetY - pos.top);
+        }
+        else {
+            console.log(this.orig_i + ' => ' + this.i);
+            this.x = null;
+            this.y = null;
+            var seq = $('sequence');
+            if (this.i == this.orig_i) {
+                console.assert(seq.children[this.i] == this.element);
+            }
+            else {
+                if (this.i < this.orig_i) {
+                    var ref = seq.children[this.i];
+                }
+                else {
+                    var ref = seq.children[this.i].nextSibling;
+                }
+                $unparent(this.element);
+                seq.insertBefore(this.element, ref);
+            }
+        }
+        UI.sequence.do_reorder();
+        if (UI.player.active) {
+            UI.player.resume();
+        }
+    },
+    on_mousemove_bucket: function(dnd) {
+        this.x = dnd.x - this.offsetX;
+        this.y = dnd.y - this.offsetY;
+    },
+    move_into_bucket: function(dnd) {
+        if (UI.player.active) {
+            UI.player.soft_hide();
+        }
+        this.stop_scrolling();
+        $unparent(this.element);
+        $('bucket').appendChild(this.element);
+        if (this.frombucket) {
+            this.clear_over();
+            UI.sequence.reset();
+        }
+        this.update_offset();
+    },
+    on_mousemove_sequence: function(dnd) {
+        var mid_x = dnd.x - this.offsetX + (this.element.offsetWidth / 2);
+        var width = UI.sequence.element.clientWidth;
+        var left = Math.min(dnd.x, mid_x);
+        var right = Math.max(dnd.x, mid_x);
+
+        if (this.scrolling) {
+            if (left > 0 && right < width) {
+                this.stop_scrolling();
+            }
+            else {
+                return;
+            }
+        }
+        else {
+            if (left <= 0) {
+                this.start_scrolling('left');
+            }
+            else if (right >= width) {
+                this.start_scrolling('right');
+            }
+        }
+        this.do_mousemove_sequence();
+    },
+
+    do_mousemove_sequence: function() {
+        var x = this.dnd.x - this.offsetX;
+        var parent = UI.sequence.element;
+        var scroll_x = x + parent.scrollLeft;
+        var ix = this.i * this.width;
+        var dx = scroll_x - ix;
+        
+        this.x = x; 
+        this.y = UI.sequence.top - 14;
+
+        if (dx < -this.threshold) {
+            this.shift_right();
+        }
+        else if (dx > this.threshold) {
+            this.shift_left();
+        }
+    },
+    move_into_sequence: function(dnd) {
+        if (UI.player.active) {
+            UI.player.soft_show();
+        }
+        if (!this.frombucket) {
+            this.clear_over();
+            UI.sequence.reset();
+        }
+        var seq = UI.sequence.element;
+        if (seq.children.length == 0) {
+            this.i = 0;
+            this.orig_i = 0;
+            this.target = this.element;
+            seq.appendChild(this.element);
+            this.update_offset();
+            return;
+        }
+        
+        var x = this.pos.left + dnd.dx;
+        
+        var scroll_x = x + seq.scrollLeft;
+    
+        var unclamped = Math.round(scroll_x / this.width);
+        this.i = Math.max(0, Math.min(unclamped, seq.children.length));
+        this.orig_i = this.i;
+        if (this.i == seq.children.length) {
+            this.over = seq.children[this.i - 1];
+            this.over.classList.add('over-right');
+        }
+        else {
+            this.over = seq.children[this.i];
+            this.over.classList.add('over');
+        }
+
+        var ref = seq.children[this.i];
+        $unparent(this.element);
+        seq.insertBefore(this.element, ref);
+        if (!ref) {
+            seq.scrollLeft += this.width;
+        }
+        this.target = this.element;
+        this.update_offset();
+    },
+        update_offset: function() {
+        this.offsetX = Math.round(this.dnd.offsetX * this.element.offsetWidth / this.offsetWidth);
+        this.offsetY = Math.round(this.dnd.offsetY * this.element.offsetHeight / this.offsetHeight);
+    },
+    clear_over: function() {
+        if (this.over) {
+            this.over.classList.remove('over');
+            this.over.classList.remove('over-right');
+            this.over = null;
+        }
+        UI.animate(null);
+    },
+    
+    start_scrolling: function(direction) {
+        this.direction = direction;
+        this.scrolling = true;
+        this.interval_id = setInterval($bind(this.on_interval, this), 300);
+    },
+    stop_scrolling: function() {
+        this.scrolling = false;
+        clearInterval(this.interval_id);
+        this.interval_id = null;
+    },
+    on_interval: function() {
+        var d = (this.direction == 'left') ? -1 : 1;
+        UI.sequence.element.scrollLeft += (d * this.width);
+        this.do_mousemove_sequence();
+    },
+    shift_right: function() {
+        if (!this.target.previousSibling) {
+            return;
+        }
+        this.i -= 1;
+        if (this.target.classList.contains('left')) {
+            this.target.classList.remove('left');
+            UI.animate(this.target);
+        }
+        else {
+            this.target.previousSibling.classList.add('right');
+            UI.animate(this.target.previousSibling);
+        }
+        this.target = this.target.previousSibling;
+    },
+
+    shift_left: function() {
+        if (!this.target.nextSibling) {
+            return;
+        }
+        this.i += 1;
+        if (this.target.classList.contains('right')) {
+            this.target.classList.remove('right');
+            UI.animate(this.target);
+        }
+        else {
+            this.target.nextSibling.classList.add('left');
+            UI.animate(this.target.nextSibling);
+        }
+        this.target = this.target.nextSibling;
+
+    },
+    destroy: function() {
+        $unparent(this.element);
+        delete this.element;
+    },
+    on_change: function(doc) {
+        if (doc._deleted) {
+            console.log('deleted ' + doc._id);
+            this.destroy();
+            UI.sequence.do_reorder();
+            return;
+        }
+        this.doc = doc;
+        for(var a in doc.node.src){
+            console.log(doc.node.src[a]);
+            var tdoc = UI.session.get_doc(doc.node.src[a]);
+            var slice = new Slice(UI.session, tdoc);
+            slice.start.request_thumbnail();
+            slice.end.request_thumbnail();
+            $unparent(slice.element);
+            this.list.appendChild(slice.element);
+    }
+    },
+}
+
+var Slice = function(session, doc) {
+    session.subscribe(doc._id, this.on_change, this);
+    this.session = session;
+    this.element = $el('div', {'class': 'slice', 'id': doc._id});
+
+    var file_id = doc.node.src;
+
+    this.start = new Frame(file_id, doc._id + '.start');
+    this.element.appendChild(this.start.element);
+
+    this.indicator = new SliceIndicator();
+    this.element.appendChild(this.indicator.element);
+
+    this.end = new Frame(file_id, doc._id + '.end');
+    this.element.appendChild(this.end.element);
+
+    this.start.element.onmousewheel = $bind(this.on_mousewheel_start, this);
+    this.end.element.onmousewheel = $bind(this.on_mousewheel_end, this);
+    this.element.onmousedown = $bind(this.on_mousedown, this);
+    this.element.ondblclick = $bind(this.on_dblclick, this);
+
+    this.frames = session.get_doc(doc.node.src).duration.frames;
+    this.on_change(doc);
+
+    this.i = null;
+    this.over = null;
+    this.width = 192 + 2;
+    this.threshold = this.width * 0.65;
+    this.timeout_id = null;
+    
+    this.oncont = false;
+    this.contn = 0;
+    this.id = doc._id;
+    UI.slices.push(this);
+}
+Slice.prototype = {
+    destroy: function() {
+        this.start.destroy();
+        delete this.start;
+        this.end.destroy();
+        delete this.end;
+        this.indicator.destroy();
+        delete this.indicator;
+        $unparent(this.element);
+        delete this.element;
+    },
+
+    set x(value) {
+        if (typeof value == 'number') {
+            this.element.style.left = value + 'px';
+        }
+        else {
+            this.element.style.left = null;
+        }
+    },
+
+    set y(value) {
+        if (typeof value == 'number') {
+            this.element.style.top = value + 'px';
+        }
+        else {
+            this.element.style.top = null;
+        }
+    },
+
+    get x() {
+        if(this.element)return parseInt(this.element.style.left);
+        else return -1;
+    },
+
+    get y() {
+        return parseInt(this.element.style.top);
+    },
+
+    get inbucket() {
+        return this.element.parentNode.id == 'bucket';
+    },
+
+    get frombucket() {
+        return this.parent.id == 'bucket';
+    },
+
+    on_change: function(doc) {
+        if (doc._deleted) {
+            console.log('deleted ' + doc._id);
+            this.destroy();
+            UI.sequence.do_reorder();
+            return;
+        }
+        this.doc = doc;
+        var node = doc.node;
+        this.start.set_index(node.start.frame);
+        this.end.set_index(node.stop.frame - 1);
+        this.indicator.update(node.start.frame, node.stop.frame, this.frames);
+        Thumbs.flush();
+    },
+
+    reset_adjustment_ux: function() {
+        if (this.timeout_id == null) {
+            UI.player.hold();
+            UI.select(this.doc._id);
+        }
+        clearTimeout(this.timeout_id);
+        this.timeout_id = setTimeout($bind(this.on_timeout, this), 750);
+    },
+
+    on_timeout: function() {
+        console.log('timeout');
+        this.timeout_id = null;
+        UI.player.resume();
+    },
+
+    on_mousewheel_start: function(event) {
+        $halt(event);
+        if (UI.player.active) {
+            this.reset_adjustment_ux();
+        }
+        var delta = wheel_delta(event);
+        var start = this.doc.node.start.frame;
+        var stop = this.doc.node.stop.frame;
+        var proposed = Math.max(0, Math.min(start + delta, stop - 1));
+        if (start != proposed) {
+            this.doc.node.start.frame = proposed;
+            this.session.save(this.doc);
+            this.session.delayed_commit();
+        }   
+    },
+
+    on_mousewheel_end: function(event) {
+        $halt(event);
+        if (UI.player.active) {
+            this.reset_adjustment_ux();
+        }
+        var delta = wheel_delta(event);
+        var start = this.doc.node.start.frame;
+        var stop = this.doc.node.stop.frame;
+        var proposed = Math.max(start + 1, Math.min(stop + delta, this.frames));
+        if (stop != proposed) {
+            this.doc.node.stop.frame = proposed;
+            this.session.save(this.doc);
+            this.session.delayed_commit();
+        }   
+    },
+
+    on_mousedown: function(event) {
+        UI.select(this.doc._id);
+        if (UI.player.active) {
+            UI.player.hold();
+        }
+        this.pos = $position(this.element);
+        this.dnd = new DragEvent(event, this.element);
+        this.dnd.ondragcancel = $bind(this.on_dragcancel, this);
+        this.dnd.ondragstart = $bind(this.on_dragstart, this);
+        this.dnd.ondrag = $bind(this.on_drag, this);
+        this.dnd.ondrop = $bind(this.on_drop, this);
+    },
+
+    on_dblclick: function(event) {
+        $halt(event);
+        if (UI.player.active) {
+            return;
+        }
+        UI.edit_slice(this.doc);
+    },
+
+    on_dragcancel: function(dnd) {
+        console.log('dragcancel');
+        if (UI.player.active) {
+            UI.player.resume();
+        }
+        this.stop_scrolling();
+        if (this.inbucket && UI.bucket.lastChild != this.element) {
+            console.log('moving to end of bucket');
+            $unparent(this.element);
+            UI.bucket.appendChild(this.element);
+            UI.sequence.do_reorder();
+        }
+    },
+
+    on_dragstart: function(dnd) {
+        console.log('dragstart');
+        UI.dragging = true;
+        this.offsetX = this.dnd.offsetX;
+        this.offsetY = this.dnd.offsetY;
+        this.offsetWidth = this.element.offsetWidth;
+        this.offsetHeight = this.element.offsetHeight;
+
+        this.parent = this.element.parentNode;
+        this.x = dnd.x - this.offsetX;
+        if (this.inbucket) {
+            this.y = dnd.y - this.offsetY;
+        }
+        else {
+            this.nextSibling = this.element.nextSibling;
+            if (this.element.nextSibling) {
+                this.over = this.element.nextSibling;
+                this.over.classList.add('over'); 
+            }
+            else if (this.element.previousSibling) {
+                this.over = this.element.previousSibling;
+                this.over.classList.add('over-right'); 
+            }
+            this.target = this.element;
+            var seq = this.element.parentNode;
+            var i, child;
+            for (i=0; i<seq.children.length; i++) {
+                child = seq.children[i];
+                if (child == this.element) {
+                    this.i = i;
+                    this.orig_i = i;
+                }
+            }
+            this.y = UI.sequence.top - 14;
+        }
+        this.element.classList.add('grabbed');
+    },
+
+    on_drag: function(dnd) {
+        var top = UI.sequence.top;
+        var height = this.element.clientHeight;
+        var y = dnd.y - this.offsetY;
+        var x = dnd.x - this.offsetX;
+        var f = 0.65;
+        //if(this.oncont)UI.conts[oncontn].reset_margin();
+        this.oncont = false;
+        for(var a in UI.conts){
+            var b = UI.conts[a];
+            if(b.element && b.x < x && b.y < y && b.x+parseInt(b.element.offsetWidth) > x && b.y+parseInt(b.element.offsetHeight) > y){
+                b.expand();
+                this.oncont = true;
+                this.oncontn = a;
+                }
+            else b.close();
+        }
+        
+        if(this.oncont) UI.conts[this.oncontn].slice_on(x-UI.conts[this.oncontn].x);   
+          
+        if (this.inbucket) {
+            if (y > top - height * (1 - f)) {
+                this.move_into_sequence(dnd);
+            }
+        }
+        else {
+            if (y < top - height * f) {
+                this.move_into_bucket(dnd);
+            }
+        }
+        if (this.inbucket) {
+            this.on_mousemove_bucket(dnd);
+        }
+        else {
+            this.on_mousemove_sequence(dnd);
+        }
+    },
+
+    move_into_sequence: function(dnd) {
+        if (UI.player.active) {
+            UI.player.soft_show();
+        }
+        if (!this.frombucket) {
+            this.clear_over();
+            UI.sequence.reset();
+        }
+        var seq = UI.sequence.element;
+        if (seq.children.length == 0) {
+            this.i = 0;
+            this.orig_i = 0;
+            this.target = this.element;
+            seq.appendChild(this.element);
+            this.update_offset();
+            return;
+        }
+        
+        var x = this.pos.left + dnd.dx;
+        
+        var scroll_x = x + seq.scrollLeft;
+    
+        var unclamped = Math.round(scroll_x / this.width);
+        this.i = Math.max(0, Math.min(unclamped, seq.children.length));
+        this.orig_i = this.i;
+        if (this.i == seq.children.length) {
+            this.over = seq.children[this.i - 1];
+            this.over.classList.add('over-right');
+        }
+        else {
+            this.over = seq.children[this.i];
+            this.over.classList.add('over');
+        }
+
+        var ref = seq.children[this.i];
+        $unparent(this.element);
+        seq.insertBefore(this.element, ref);
+        if (!ref) {
+            seq.scrollLeft += this.width;
+        }
+        this.target = this.element;
+        this.update_offset();
+    },
+
+    move_into_bucket: function(dnd) {
+        if (UI.player.active) {
+            UI.player.soft_hide();
+        }
+        this.stop_scrolling();
+        $unparent(this.element);
+        $('bucket').appendChild(this.element);
+        if (this.frombucket) {
+            this.clear_over();
+            UI.sequence.reset();
+        }
+        this.update_offset();
+    },
+
+    update_offset: function() {
+        this.offsetX = Math.round(this.dnd.offsetX * this.element.offsetWidth / this.offsetWidth);
+        this.offsetY = Math.round(this.dnd.offsetY * this.element.offsetHeight / this.offsetHeight);
+    },
+
+    on_mousemove_bucket: function(dnd) {
+        this.x = dnd.x - this.offsetX;
+        this.y = dnd.y - this.offsetY;
+    },
+
+    start_scrolling: function(direction) {
+        this.direction = direction;
+        this.scrolling = true;
+        this.interval_id = setInterval($bind(this.on_interval, this), 300);
+    },
+
+    stop_scrolling: function() {
+        this.scrolling = false;
+        clearInterval(this.interval_id);
+        this.interval_id = null;
+    },
+
+    on_interval: function() {
+        var d = (this.direction == 'left') ? -1 : 1;
+        UI.sequence.element.scrollLeft += (d * this.width);
+        this.do_mousemove_sequence();
+    },
+
+    on_mousemove_sequence: function(dnd) {
+        var mid_x = dnd.x - this.offsetX + (this.element.offsetWidth / 2);
+        var width = UI.sequence.element.clientWidth;
+        var left = Math.min(dnd.x, mid_x);
+        var right = Math.max(dnd.x, mid_x);
+
+        if (this.scrolling) {
+            if (left > 0 && right < width) {
+                this.stop_scrolling();
+            }
+            else {
+                return;
+            }
+        }
+        else {
+            if (left <= 0) {
+                this.start_scrolling('left');
+            }
+            else if (right >= width) {
+                this.start_scrolling('right');
+            }
+        }
+        this.do_mousemove_sequence();
+    },
+
+    do_mousemove_sequence: function() {
+        var x = this.dnd.x - this.offsetX;
+        var parent = UI.sequence.element;
+        var scroll_x = x + parent.scrollLeft;
+        var ix = this.i * this.width;
+        var dx = scroll_x - ix;
+        
+        this.x = x; 
+        this.y = UI.sequence.top - 14;
+
+        if (dx < -this.threshold) {
+            this.shift_right();
+        }
+        else if (dx > this.threshold) {
+            this.shift_left();
+        }
+    },
+
+    shift_right: function() {
+        if (!this.target.previousSibling) {
+            return;
+        }
+        this.i -= 1;
+        if (this.target.classList.contains('left')) {
+            this.target.classList.remove('left');
+            UI.animate(this.target);
+        }
+        else {
+            this.target.previousSibling.classList.add('right');
+            UI.animate(this.target.previousSibling);
+        }
+        this.target = this.target.previousSibling;
+    },
+
+    shift_left: function() {
+        if (!this.target.nextSibling) {
+            return;
+        }
+        this.i += 1;
+        if (this.target.classList.contains('right')) {
+            this.target.classList.remove('right');
+            UI.animate(this.target);
+        }
+        else {
+            this.target.nextSibling.classList.add('left');
+            UI.animate(this.target.nextSibling);
+        }
+        this.target = this.target.nextSibling;
+
+    },
+
+    clear_over: function() {
+        if (this.over) {
+            this.over.classList.remove('over');
+            this.over.classList.remove('over-right');
+            this.over = null;
+        }
+        UI.animate(null);
+    },
+
+    on_drop: function(dnd) {
+        UI.dragging = false;
+        this.stop_scrolling();
+        this.element.classList.remove('grabbed');
+        this.clear_over();
+        if(this.oncont){
+                this.x = null;
+                this.y = null;
+                var pos = UI.conts[this.contn].pos;
+                console.log(pos);
+                $unparent(this.element);
+                $unselect(UI.selected);
+                if(pos == -1) UI.conts[this.contn].list.appendChild(this.element);
+                else UI.conts[this.contn].list.insertBefore(this.element,UI.conts[this.contn].list.childNodes[pos]);
+                //UI.conts[this.contn].list.appendChild(this.element);
+                //UI.conts[this.contn].doc.node.src.push(this.id);
+                //this.session.save( UI.conts[this.contn].doc,true);
+                UI.conts[this.contn].reset_margin();
+                UI.conts[this.contn].save();
+                UI.sequence.do_reorder();
+                for(var a in UI.slices)if(UI.slices[a].id == this.id)UI.slices.splice(a,1);
+                return;            
+        }
+        UI.sequence.reset();
+        if (this.inbucket) {
+            if (UI.player.active) {
+                UI.player.hide();
+            }
+            if (UI.bucket.lastChild != this.element) {
+                $unparent(this.element);
+                UI.bucket.appendChild(this.element);
+            }
+            var pos = $position(UI.bucket);
+            this.x = Math.max(0, dnd.x - this.offsetX - pos.left);
+            this.y = Math.max(0, dnd.y - this.offsetY - pos.top);
+        }
+        else {
+            console.log(this.orig_i + ' => ' + this.i);
+            this.x = null;
+            this.y = null;
+            var seq = $('sequence');
+            if (this.i == this.orig_i) {
+                console.assert(seq.children[this.i] == this.element);
+            }
+            else {
+                if (this.i < this.orig_i) {
+                    var ref = seq.children[this.i];
+                }
+                else {
+                    var ref = seq.children[this.i].nextSibling;
+                }
+                $unparent(this.element);
+                seq.insertBefore(this.element, ref);
+            }
+        }
+        if(UI.conts[this.contn]) UI.conts[this.contn].save();
+        UI.sequence.do_reorder();
+        if (UI.player.active) {
+            UI.player.resume();
+        }
+    },
+}
+
+
+function $compare(one, two) {
+    if (! (one instanceof Array && two instanceof Array)) {
+        return false;
+    }
+    if (one.length != two.length) {
+        return false;
+    }
+    var i;
+    for (i in one) {
+        if (one[i] != two[i]) {
+            return false;
+        }
+    }
+    return true;
+}
+
+
+var Sequence = function(session, doc) {
+    this.element = $('sequence');
+    this.bucket = $('bucket');
+    session.subscribe(doc._id, this.on_change, this);
+    this.session = session;
+    this.on_change(doc);
+
+    this.element.onmousedown = $bind(this.on_mousedown, this);
+    this.element.onscroll = $bind(this.on_scroll, this);
+    this.element.onchildselect = $bind(this.on_childselect, this);
+}
+Sequence.prototype = {
+    get top() {
+        return this.element.offsetTop + 24;
+    },
+
+    on_childselect: function(id) {
+        console.log('childselect ' + id);
+        $hscroll($(id));
+    },
+
+    on_change: function(doc) {
+        console.log('Sequence.on_change()');
+        this.doc = doc;
+
+        Thumbs.freeze();
+
+        var i, _id, child, element;
+        for (i in doc.node.src) {
+            _id = doc.node.src[i];
+            child = this.element.children[i];
+            if (!child || child.id != _id) {
+                element = UI.get_slice(_id);
+                if (element) {
+                    this.element.insertBefore(element, child);
+                }
+            }
+        }
+
+        if (! doc.doodle instanceof Array) {
+            UI.sequence.doc.doodle = [];
+        }
+
+        var obj;
+        for (i in doc.doodle) {
+            obj = doc.doodle[i];
+            child = this.bucket.children[i];
+            if (!child || child.id != obj.id) {
+                element = UI.get_slice(obj.id);
+                if (element) {
+                    this.bucket.insertBefore(element, child);
+                }
+                child = element;
+            }
+            if (child) {
+                child.style.left = obj.x + 'px';
+                child.style.top = obj.y + 'px';
+            }
+        }
+
+        UI.select(doc.selected);
+
+        Thumbs.unfreeze();
+
+        console.assert(
+            $compare(this.doc.node.src, this.get_src())
+        );
+    },
+
+    on_scroll: function(event) {
+        this.element.style.setProperty('background-position', -this.element.scrollLeft + 'px 0px');
+    },
+
+    on_mousedown: function(event) {
+        console.log('sequence mousedown');
+        this.dnd = new DragEvent(event, this.element);
+        this.dnd.ondrag = $bind(this.on_drag, this);
+        this.dnd.scrollLeft = this.element.scrollLeft;
+    },
+
+    on_drag: function(dnd) {  
+        this.element.scrollLeft = dnd.scrollLeft - dnd.dx;  
+    },
+
+    get_src: function() {
+        var i;
+        var src = [];
+        for (i=0; i<this.element.children.length; i++) {
+            src.push(this.element.children[i].id);
+        }
+        return src;
+    },
+
+    get_doodle: function() {
+        var i, child;
+        var doodle = [];
+        for (i=0; i<this.bucket.children.length; i++) {
+            var child = this.bucket.children[i];
+            doodle.push({
+                id: child.id,
+                x: parseInt(child.style.left),
+                y: parseInt(child.style.top),
+            });
+        }
+        return doodle;
+    },
+
+    do_reorder: function() {
+        console.log('do_reorder');
+        var src = this.get_src();
+        var doodle = this.get_doodle();
+        this.doc.node.src = src;
+        this.doc.doodle = doodle;
+        this.session.save(this.doc, true);  // no_emit=true
+        this.session.commit();
+    },
+
+    reset: function() {
+        console.log('Sequence.reset()');
+        var i, child;
+        for (i=0; i<this.element.children.length; i++) {
+            child = this.element.children[i];
+            if (!child.classList.contains('grabbed')) {
+                child.classList.remove('left');
+                child.classList.remove('right');
+            }
+        }
+    },
+}
+
+var VideoFrame = function(which) {
+    this.element = $el('div', {'class': 'videoframe ' + which});
+    this.video = $el('video');
+    this.element.appendChild(this.video);
+    this.info = $el('div');
+    this.element.appendChild(this.info);
+    this.ready = false;
+    this.pending = null;
+    this.video.addEventListener('canplaythrough',
+        $bind(this.on_canplaythrough, this)
+    );
+    this.video.addEventListener('seeked',
+        $bind(this.on_seeked, this)
+    );
+}
+VideoFrame.prototype = {
+    set_index: function(index) {
+        this.info.textContent = index + 1;
+        this.seek(index);
+    },
+
+    on_canplaythrough: function(event) {
+        this.ready = true;
+        this.do_seek();
+    },
+
+    on_seeked: function(event) {
+        if (this.pending != null) {
+            this.do_seek();
+        }
+    },
+
+    set_clip: function(clip) {
+        this.ready = false;
+        this.framerate = clip.framerate;
+        this.frames = clip.duration.frames;
+        this.pending = null;
+        this.video.src = 'dmedia:' + clip._id;
+    },
+
+    play: function() {
+        this.video.play();
+    },
+
+    pause: function() {
+        this.video.pause();
+    },
+
+    seek: function(index) {
+        this.pending = frame_to_seconds(index, this.framerate);
+        if (this.ready && ! this.video.seeking) {
+            this.do_seek();
+        }
+    },
+
+    do_seek: function() {
+        var t = this.pending;
+        this.pending = null;
+        this.video.currentTime = t;
+    },
+
+    show: function() {
+        this.element.classList.remove('hide');
+    },
+
+    hide: function() {
+        this.video.pause();
+        this.element.classList.add('hide');
+    },
+
+    get_x: function(width) {
+        return Math.round(width * this.video.currentTime / this.video.duration);
+    },
+
+    get_frame: function() {
+        return Math.round(this.frames * this.video.currentTime / this.video.duration);
+    },
+}
+
+
+var RoughCut = function(session) {
+    this.session = session;
+    this.active = false;
+
+    this.element = $('roughcut');
+    this.frames = $el('div', {'class': 'frames'});
+    this.element.appendChild(this.frames);
+
+    this.done = $('close_roughcut');
+    this.done.onclick = function() {
+        this.blur();
+        UI.hide_roughcut();
+    }
+
+    this.create_button = $('create_slice');
+    this.create_button.onclick = $bind(this.create_slice, this);
+
+    this.startvideo = new VideoFrame('start');
+    this.frames.appendChild(this.startvideo.element);
+
+    this.endvideo = new VideoFrame('end hide');
+    this.frames.appendChild(this.endvideo.element);
+
+    this.scrubber = $el('div', {'class': 'scrubber'});
+    this.element.appendChild(this.scrubber);
+
+    this.bar = $el('div', {'class': 'bar hide'});
+    this.scrubber.appendChild(this.bar);
+
+    this.playhead = $el('div', {'class': 'playhead hide'});
+    this.scrubber.appendChild(this.playhead);
+
+    this.scrubber.onmouseover = $bind(this.on_mouseover, this);
+    this.scrubber.onmousedown = $bind(this.on_mousedown, this);
+
+    this.startvideo.video.addEventListener('timeupdate',
+        $bind(this.on_timeupdate, this)
+    );
+    this.startvideo.video.addEventListener('ended',
+        $bind(this.on_ended, this)
+    );
+
+    this.startvideo.element.addEventListener('mousewheel',
+        $bind(this.on_mousewheel_start, this)
+    );
+    this.endvideo.element.addEventListener('mousewheel',
+        $bind(this.on_mousewheel_end, this)
+    );
+} 
+RoughCut.prototype = {
+    on_ended: function() {
+        if (! this.playing) {
+            return;
+        }
+        var frame = (this.mode == 'edit' && this.inside) ? this.start : 0;
+        this.startvideo.seek(frame);
+        this.startvideo.video.play();
+        this.pframe = frame;
+    },
+
+    on_timeupdate: function() {
+        if (! this.playing) {
+            return;
+        }
+        if (this.dnd) {
+            return;
+        }
+        var frame = this.startvideo.get_frame();
+        if (this.mode == 'edit' && this.inside && frame >= this.stop - 1) {
+            this.startvideo.seek(this.start, true);
+            frame = this.start;
+        }
+        this.pframe = frame;
+    },
+
+    hide: function() {
+        this.active = false;
+        this.mode = null;
+        this.pause(); 
+        $hide(this.element);
+    },
+
+    show: function(id) {
+        console.log('show ' + id);
+        if (! this.element.classList.contains('hide')) {
+            this.x = this.x + 130 + 10 + (this.xf * 3);
+            if (this.x > document.body.clientWidth - 130) {
+                this.x = 0;
+            }
+        }
+        else {    
+            this.x = 0;
+        }
+        this.y = 0;
+        this.count = 0;
+        this.active = true;
+        this.clip = this.session.get_doc(id);
+        this.frames = this.clip.duration.frames;
+        this.startvideo.set_clip(this.clip);
+        this.endvideo.set_clip(this.clip);
+        $show(this.element);
+    },
+
+    reset: function() {
+        delete this.dnd;
+        this._start = 0;
+        this._stop = this.frames;
+        this.pframe = null;
+        this.startvideo.pause();
+        this.playing = false;
+        this.scrubber.onmousemove = null;
+    },
+
+    get_x: function(frame) {
+        return Math.round(this.scrubber.clientWidth * frame / this.frames);
+    },
+
+    get_frame: function(x, key_unit) {
+        var frame = Math.round(this.frames * x / this.scrubber.clientWidth);
+        if (key_unit) {
+            return 1 + Math.round(frame / 15) * 15;
+        }
+        return frame;
+    },
+
+    set start(value) {
+        this._start = Math.max(0, Math.min(value, this._stop - 1));
+        this.startvideo.set_index(this._start);
+    },
+
+    get start() {
+        return this._start;
+    },
+
+    set stop(value) {
+        this._stop = Math.max(this._start + 1, Math.min(value, this.frames));
+        this.endvideo.set_index(this._stop - 1);
+    },
+
+    get stop() {
+        return this._stop;
+    },
+ 
+    get left() {
+        return this.get_x(this._start);
+    },
+
+    get right() {
+        return this.get_x(this._stop);
+    },
+
+    set pframe(value) {
+        if (value == null) {
+            this._pframe = null;
+            this.playhead.classList.add('hide');
+        }
+        else {
+            this._pframe = Math.max(0, Math.min(value, this.frames - 1));
+            this.playhead.classList.remove('hide');
+            this.playhead.style.left = this.get_x(this._pframe) + 'px';  
+        }
+    },
+
+    get pframe() {
+        return this._pframe;
+    },
+
+    on_mousewheel_start: function(event) {
+        $halt(event);
+        var orig = this._start;       
+        this.start = orig + wheel_delta(event);
+        if (this.start != orig) {
+            this.save_to_slice();
+            this.session.delayed_commit();
+            if (this.mode == 'create') {
+                this.bar.style.left = this.left + 'px';
+            }
+            else {
+                this.update_bar();
+            }
+        }   
+    },
+
+    on_mousewheel_end: function(event) {
+        $halt(event);
+        var orig = this._stop;       
+        this.stop = orig + wheel_delta(event);
+        if (this.stop != orig) {
+            this.save_to_slice();
+            this.session.delayed_commit();
+            this.update_bar();
+        }
+    },
+
+    playpause: function() {
+        if (this.playing) {
+            this.pause();
+        }
+        else {
+            this.play();
+        }
+    },
+
+    play: function() {
+        this.playing = true;
+        this.scrubber.onmousemove = null;
+        if (this._pframe == null) {
+            this.pframe = this.start;
+        }
+        this.startvideo.seek(this.pframe);
+        this.startvideo.play();
+    },
+
+    pause: function() {
+        this.startvideo.pause();
+        this.startvideo.seek(this.start);
+        this.playing = false;
+        if (this.mode == 'create') {
+            this.bind_mousemove();
+        }
+    },
+
+    update_bar: function() {
+        var left = this.left;
+        var width = Math.max(2, this.right - left);
+        this.bar.style.left = left + 'px';
+        this.bar.style.width = width + 'px';
+    },
+
+    sync_from_slice: function() {
+        this._start = 0;
+        this._stop = this.frames;
+        this.start = this.slice.node.start.frame;
+        this.stop = this.slice.node.stop.frame;
+        this.update_bar();
+    },
+
+    save_to_slice: function() {
+        /*
+        Store start & stop in slice doc, mark doc as dirty.
+
+        Note that this *only* marks the slice doc as dirty, does *not* call
+        session.commit().  This is for cases when you also need to update the
+        sequence doc, so you can send both in a single CouchDB request.
+        */
+        this.slice.node.start.frame = this.start;
+        this.slice.node.stop.frame = this.stop;
+        this.session.save(this.slice);
+    },
+
+    create_slice: function() {
+        console.log('create_slice');
+        this.create_button.blur();
+        this.count += 1;
+        this.mode = 'create';
+        this.endvideo.hide();
+        this.reset();
+        this.start = 0; 
+        this.bar.style.left = this.left + 'px';
+        this.bar.style.width = '1px';
+        this.slice = create_slice(this.clip._id, this.frames);
+        this.bind_mousemove();
+    },
+
+    edit_slice: function(slice) {
+        console.log('edit_slice ' + slice._id);
+        this.mode = 'edit';
+        this.inside = true;
+        this.slice = slice;
+        this.endvideo.show();
+        this.reset();
+        $show(this.bar);
+        this.sync_from_slice();
+    },
+
+    bind_mousemove: function() {
+        this.scrubber.onmousemove = $bind(this.on_mousemove, this);
+    },
+
+    on_mouseover: function(event) {
+        if (this.mode == 'create' && !this.playing && !this.dnd) {
+            $show(this.bar);
+        }
+    },
+
+    on_mousemove: function(event) {
+        this.start = this.get_frame(event.clientX);
+        this.bar.style.left = this.left + 'px';
+    },
+
+    on_mousedown: function(event) {
+        this.scrubber.onmousemove = null;
+        this.dnd = new DragEvent(event);
+        this.dnd.ondragcancel = $bind(this.on_dragcancel, this);
+        this.dnd.ondragstart = $bind(this.on_dragstart, this);
+
+        if (this.playing) {
+            this.startvideo.pause();
+            return this.scrub_playhead(this.dnd);
+        }
+        if (this.mode == 'edit') {
+            var mid = (this.left + this.right) / 2;
+            this.point = (event.clientX <= mid) ? 'left' : 'right';
+            var frame = this.get_frame(event.clientX);
+            if (this.point == 'left') {
+                this.start = frame;
+            }
+            else {
+                this.stop = frame + 1;
+            }
+            this.update_bar();
+        }
+    },
+
+    scrub_playhead: function(dnd) {
+        var frame = this.get_frame(dnd.x);
+        if (this.start <= frame && frame < this.stop) {
+            this.inside = true;
+        }
+        else {
+            this.inside = false;
+        }
+        this.pframe = frame;
+        this.startvideo.seek(frame);
+    },
+
+    on_dragcancel: function(dnd) {
+        delete this.dnd;
+        if (this.playing) {
+            this.startvideo.play();
+            return;
+        }
+        if (this.mode == 'create') {
+            this.bindmousemove();
+        }
+        else {
+            this.save_to_slice();
+            this.session.delayed_commit();
+        }
+    },
+
+    on_dragstart: function(dnd) {
+        this.dnd.ondrag = $bind(this.on_drag, this);
+        this.dnd.ondrop = $bind(this.on_drop, this);
+        if (!this.playing && this.mode == 'create') {
+            this.endvideo.show();
+            this.orig_start = this.start;
+        }
+    },
+
+    on_drag: function(dnd) {
+        var frame = this.get_frame(dnd.x);
+        if (this.playing) {
+            return this.scrub_playhead(dnd);
+        }
+        if (this.mode == 'create') {
+            if (frame < this.orig_start) {
+                this.start = frame;
+                this.stop = this.orig_start + 1;
+            }
+            else {
+                this.start = this.orig_start;
+                this.stop = frame + 1;
+            }
+        }
+        else {
+            if (this.point == 'left') {
+                this.start = frame;
+            }
+            else {
+                this.stop = frame + 1;
+            }
+        }
+        this.update_bar();
+    },
+
+    xf: 25,
+
+    yf: 50,
+
+    on_drop: function(dnd) {
+        delete this.dnd;
+        if (this.playing) {
+            this.startvideo.play();
+            return;
+        }
+        if (this.mode == 'create') {
+            this.save_to_slice();
+            var x = this.x + (this.count * this.xf);
+            var y = this.y + (this.count * this.yf);
+            UI.sequence.doc.doodle.push({id: this.slice._id, x: x, y: y});
+            this.session.save(UI.sequence.doc);
+            this.session.delayed_commit();
+            this.edit_slice(this.slice);
+        }
+        else {
+            this.save_to_slice();
+            this.session.delayed_commit();
+        }
+    },
+}
+
+
+function Clips() {
+    this.selected = null;
+    this.dropdown = $('dmedia_project');
+    this.dropdown.onchange = $bind(this.on_dropdown_change, this);
+    this.div = $('clips');
+    this.container = $('clips_outer');
+    this.session = UI.session;
+    this.doc = this.session.get_doc(UI.project_id);
+    this.session.subscribe(this.doc._id, this.on_change, this);
+    this.id = null;
+    this.db = null;
+    this.load_projects();
+    this.open = $('open_clips');
+    this.open.onclick = $bind(this.on_open_click, this);
+
+    this.div.onchildselect = $bind(this.on_childselect, this);
+}
+Clips.prototype = {
+    on_childselect: function(id) {
+        console.log('childselect ' + id);
+        $hscroll($(id));
+        if (this.doc.selected_clips[this.id] != id) {
+            this.doc.selected_clips[this.id] = id;
+            this.session.save(this.doc, true);
+            this.session.delayed_commit();
+        }
+    },
+
+    on_change: function(doc) {
+        console.log('Clips.on_change');
+        this.doc = doc;
+        if (!this.doc.selected_clips) {
+            this.doc.selected_clips = {};
+        }
+        var id = doc.dmedia_project_id;
+        this.dropdown.value = id;
+        if (this.load(id)) {
+            this.div.innerHTML = null;
+            this.load_clips();
+        }
+    },
+
+    load: function(id) {
+        console.log('load ' + id);
+        if (!id) {
+            this.id = null;
+            this.db = null;
+            return false;
+        }
+        if (id == this.id) {
+            return false;
+        }
+        this.id = id;
+        this.db = dmedia_project_db(id);
+        return true;
+    },
+
+    load_projects: function() {
+        var callback = $bind(this.on_projects, this);
+        dmedia.view(callback, 'project', 'title');
+    },
+
+    on_projects: function(req) {
+        var rows = req.read().rows;
+        this.dropdown.innerHTML = null;
+        this.placeholder = $el('option');
+        this.dropdown.appendChild(this.placeholder);
+        rows.forEach(function(row) {
+            var option = $el('option', {textContent: row.key, value: row.id});
+            this.dropdown.appendChild(option);
+        }, this);
+    },
+
+    on_dropdown_change: function(event) {
+        if (this.placeholder) {
+            $unparent(this.placeholder);
+            delete this.placeholder;
+        }
+        this.doc.dmedia_project_id = this.dropdown.value;
+        this.dropdown.blur();
+        this.session.save(this.doc);
+        this.session.delayed_commit();
+    },
+
+    load_clips: function() {
+        var callback = $bind(this.on_clips, this);
+        this.db.view(callback, 'user', 'video');
+    },
+
+    on_clips: function(req) {
+        var rows = req.read().rows;
+        this.div.innerHTML = null;
+        var self = this;
+        rows.forEach(function(row) {
+            var id = row.id;
+            var img = new Image();
+            img.id = id;
+            img.src = this.att_url(id);
+            img.onmousedown = function(event) {
+                self.on_mousedown(id, event);
+            }
+            img.ondblclick = function(event) {
+                self.on_dblclick(id, event);
+            }
+            this.div.appendChild(img);
+        }, this);
+        UI.select(this.doc.selected_clips[this.id]);
+    },
+
+    on_open_click: function(event) {
+        if (!this.container.classList.toggle('open')) {
+            var element = $(UI.selected);
+            if (element && element.parentNode.id == 'clips') {
+                UI.select(null);
+            }
+        }
+    },
+
+    on_mousedown: function(id, event) {
+        UI.select(id);
+        this.dnd = new DragEvent(event);
+        this.dnd.id = id;
+        this.dnd.ondragcancel = $bind(this.on_dragcancel, this);
+        this.dnd.ondragstart = $bind(this.on_dragstart, this);
+    },
+
+    on_dragcancel: function(dnd) {
+        delete this.dnd;
+    },
+
+    on_dragstart: function(dnd) {
+        this.dnd.ondrag = $bind(this.on_drag, this);
+        this.dnd.ondrop = $bind(this.on_drop, this);
+    },
+
+    on_drag: function(dnd) {
+        if (dnd.dy > 50) {
+            console.log('creating ' + dnd.dy);
+            dnd.ondrag = null;
+            UI.copy_clip(dnd.id);
+            var clip = this.session.get_doc(dnd.id);
+            var doc = create_slice(clip._id, clip.duration.frames);
+            this.session.save(doc, true);
+            var slice = new Slice(UI.session, doc);
+            slice.x = dnd.x - 64;
+            slice.y = dnd.y - 36;
+            UI.bucket.appendChild(slice.element);
+            slice.on_mousedown(dnd.event);
+        }
+    },
+
+    on_drop: function(dnd) {
+        delete this.dnd;
+    },
+
+    on_dblclick: function(id, event) {
+        UI.copy_clip(id);
+        UI.create_slice(id);
+    },
+
+    att_url: function(doc_or_id, name) {
+        if (!this.db) {
+            return null;
+        }
+        return this.db.att_url(doc_or_id, name);
+    },
+
+    att_css_url: function(doc_or_id, name) {
+        if (!this.db) {
+            return null;
+        }
+        return this.db.att_css_url(doc_or_id, name);
+    },
+}
+
+
+var LoveOrb = function() {
+    this.logo = $el('img', {'id': 'logo', 'src': 'novacut.png'});
+    document.body.appendChild(this.logo);
+    this.capture = $('flyout_capture');
+    this.flyout = $('flyout');
+    this.logo.onmousedown = $bind(this.on_mousedown, this);
+    this.logo.onclick = $bind(this.on_click, this);
+    this.capture.onclick = $bind(this.on_capture_click, this);
+    this.flyout.onclick = $bind(this.on_flyout_click, this);
+}
+LoveOrb.prototype = {
+    get active() {
+        return !this.capture.classList.contains('hide');
+    },
+
+    toggle: function() {
+        if(this.capture.classList.toggle('hide')) {
+            this.logo.classList.remove('open');
+        }
+        else {
+            this.logo.classList.add('open');
+        }
+    },
+
+    on_mousedown: function(event) {
+        // Needed to prevent annoying drag behavior
+        $halt(event);
+    },
+
+    on_click: function(event) {
+        $halt(event);
+        this.toggle();
+    },
+
+    on_capture_click: function(event) {
+        console.log('capture click');
+        $halt(event);
+        this.toggle();
+    },
+
+    on_flyout_click: function(event) {
+        console.log('flyout click');
+        event.stopPropagation();
+    },
+}
+
+function closeAll(){
+    for(var a in UI.conts)UI.conts[a].close();
+}
+
+
+function unselectAll(){
+        for(var a in UI.selected){
+            var b = UI.selected[a];
+            $unselect(b);
+        }
+        UI.selected = Array();
+}
+
+var selector = {
+    init: function(){
+        selector.down = false;
+        selector.el = "";
+        selector.xs = 1;
+        selector.ys = 1;
+    },
+    on_mouse_down: function(ev){
+        closeAll();
+        unselectAll();
+        selector.down = true;
+        selector.el = $el('div', {'class': 'selector','id': 'sel'});
+        selector.stx = ev.x;
+        selector.sty = ev.y;
+        selector.el.style.left = ev.x +'px';
+        selector.el.style.top = ev.y +'px';
+        UI.bucket.appendChild(selector.el);
+    },
+    on_mouse_up: function(ev){
+        console.log("mouse up");
+        if(selector.down && selector.el && selector.el.parentNode){
+        selector.el.parentNode.removeChild(selector.el);
+        if(document.getElementById('sel'))document.getElementById('sel').parentNode.removeChild(document.getElementById('sel'));
+        selector.down = false;
+        var stx = selector.stx;
+        var endx = selector.stx+selector.xs*parseInt(selector.el.style.width);
+        var sty = selector.sty;
+        var endy = selector.sty+selector.ys*parseInt(selector.el.style.height);
+        if(stx > endx){
+            var tmp = stx;
+            stx = endx;
+            endx = tmp;
+        }
+        if(sty > endy){
+            var tmp = sty;
+            sty = endy;
+            endy = tmp;
+        }
+        for(var a in UI.slices){
+            var b = UI.slices[a];
+            if(b.x > stx && b.x < endx && b.y > sty && b.y < endy){
+                UI.selected.push(b.id);
+                $select(b.id);
+            }
+        }
+        for(var a in UI.conts){
+            var b = UI.conts[a];
+            if(b.x > stx && b.x < endx && b.y > sty && b.y < endy){
+                UI.selected.push(b.id);
+                $select(b.id);
+            }
+        }
+        }
+    },
+    on_mouse_move: function(ev){
+        if(selector.down){
+            var w = ev.x - selector.stx;
+            var h = ev.y - selector.sty;
+            selector.el.style.width = ev.x - selector.stx  +'px';
+            selector.el.style.height = ev.y - selector.sty +'px';
+            selector.xs = 1;
+            selector.ys = 1;
+            if(w < 0){
+                selector.el.style.width = -w + 'px';
+                selector.el.style.left = ev.x + 'px';
+                selector.xs = -1;
+            }
+            if(h < 0){
+                selector.el.style.height = -h + 'px';
+                selector.el.style.top = ev.y + 'px';
+                selector.ys = -1;
+            }
+        }       
+    }
+
+}
+
+function compare(a,b){
+return a.x-b.x;
+}
+
+function generateAnimation(id,x,y,ex){//generate the animation
+	var keyframeprefix = "-webkit-";
+	var keyframes = '@' + keyframeprefix + 'keyframes '+id+' { '+'0% {' + keyframeprefix + 'transform:scale(1)}'+'50% {' + keyframeprefix + 'transform:translatex('+x+'px) translatey('+y+'px)}'+'100% {' + keyframeprefix + 'transform:translatex('+ex+'px) translatey('+y+'px)}'+'}';
+	keyframes += '#'+id+'{-webkit-animation-duration: 0.5s;-webkit-animation-iteration-count: 1;-webkit-animation-timing-function:linear;}'; 
+	var s = document.createElement( 'style' );
+	s.innerHTML = keyframes;
+	document.getElementsByTagName( 'head' )[ 0 ].appendChild( s );
+}
+
+
+var UI = {
+    init: function() {
+        Hub.connect('edit_hashed', UI.on_edit_hashed);
+        Hub.connect('job_hashed', UI.on_job_hashed);
+        Hub.connect('job_rendered', UI.on_job_rendered);
+
+        // Figure out what project we're in:
+        var parts = parse_hash();
+        UI.project_id = parts[0];
+        UI.db = novacut_project_db(UI.project_id);
+
+        // Bit of UI setup
+        window.addEventListener('keyup', UI.on_keyup);
+        UI.bucket = $('bucket');
+        UI.orb = new LoveOrb();
+	    document.getElementById('shortcuts').style.marginTop = window.innerHeight/2-200+"px";
+	    document.getElementById('shortcuts').style.marginLeft = window.innerWidth/2-255+"px";
+	    
+	    //selector
+	    UI.selected = Array();
+	    UI.bucket.addEventListener('mousedown', selector.on_mouse_down, false);
+        UI.bucket.addEventListener('mousemove', selector.on_mouse_move, false);
+        document.addEventListener('mouseup',   selector.on_mouse_up, false);
+
+        // Create and start the CouchDB session 
+        UI.session = new couch.Session(UI.db, UI.on_new_doc);       
+        UI.session.start();
+        
+        UI.dragging = false;
+        UI.slices = Array();
+        UI.conts = Array();
+        document.body.onclick = $bind(closeAll);
+    },
+
+    animated: null,
+
+    animate: function(element) {
+        if (UI.animated) {
+            UI.animated.classList.remove('animated');
+        }
+        UI.animated = $(element);
+        if (UI.animated) {
+            UI.animated.classList.add('animated');
+        }
+    },
+
+    copy_clip: function(id) {
+        try {
+            UI.session.get_doc(id);
+        }
+        catch (e) {
+            console.log('copying ' + id);
+            var doc = UI.clips.db.get_sync(id, {attachments: true});
+            delete doc._rev;
+            UI.session.save(doc, true);
+        }
+    },
+
+    select: function(id) {
+        unselectAll();
+        var element = $select(id);
+        if (element) {
+            UI.selected.push(id);
+            if (element.parentNode && element.parentNode.onchildselect) {
+                element.parentNode.onchildselect(id);
+            }
+        }
+        else {
+            UI.selected = Array();
+        }
+        if (UI.sequence) {
+            var doc = UI.sequence.doc;
+            if (doc.selected != UI.selected) {
+                doc.selected = UI.selected;
+                UI.session.save(doc, true);  // No local emit
+                UI.session.delayed_commit();
+            }
+        }
+    },
+
+    delete_selected: function() {
+        for(var a in UI.selected){
+            var id = UI.selected[a];
+            var element = $(UI.selected[a]);
+            if (element) {
+                if (element.parentNode && element.parentNode.id == 'clips') {
+                    console.log('no delete in clips browser');
+                    return;
+                }
+                try {
+                    var doc = UI.session.get_doc(element.id);
+                    UI.previous();
+                    doc._deleted = true;
+                    UI.session.save(doc);
+                    if(doc.node.type == 'cont')for(var a in UI.conts){
+                        if(UI.conts[a].id == id)UI.conts.splice(a,1);
+                    }
+                    if(doc.node.type == 'slice')for(var a in UI.slices){
+                        if(UI.slices[a].id == id)UI.slices.splice(a,1);
+                    }
+                }
+                catch (e) {
+                    return;
+                }
+            }
+        }
+    },
+    
+    group_selected: function(){
+        var ndoc = create_cont();
+        var list = Array();
+        if(UI.selected.length < 2)return;
+        for(var a in UI.selected){//get all the slices
+            var doc = UI.session.get_doc(UI.selected[a]);
+            if(doc.node.type == 'slice'){
+                for(var b in UI.slices)if(UI.slices[b].id == UI.selected[a]){
+                    list.push(UI.slices[b]);
+                    UI.slices.splice(b,1);
+                }
+                //UI.bucket.removeChild(document.getElementById(UI.selected[a]))
+                //ndoc.node.src.push(UI.selected[a]);
+            }            
+        }
+        if(list.length < 2)return;
+        list.sort(compare);//sort for x position
+        var y = 0;
+        for(var a in list){//add the slices in the doc and compute the average y
+            ndoc.node.src.push(list[a].id);
+            y += list[a].y;
+        }
+        y /= list.length;
+        UI.session.save(ndoc);
+        var ncont = new Cont(UI.session,ndoc);
+        ncont.x = list[0].x;
+        ncont.y = y;
+        for(var a in list){//animate to form a line
+            generateAnimation(list[a].id,list[0].x+(a*130)-list[a].x,y-list[a].y,list[0].x-list[a].x);
+            list[a].element.style.webkitAnimationName = list[a].id;
+            console.log('animate');
+            list[a].element.addEventListener('webkitAnimationEnd',function(ev){
+            //console.log('end');
+            /*this.style.webkitAnimationName = "";
+            this.style.top = "0px";
+            this.style.left = "0px";
+            $unparent(this);
+            ncont.list.appendChild(this);
+            ncont.close();*/
+            UI.bucket.removeChild(this);
+            UI.sequence.do_reorder();
+            
+            });           
+        }
+        //setTimeout(UI.sequence.do_reorder(),530);
+        //setTimeout(function(){for(var a in list)UI.bucket.removeChild(document.getElementById(list[a].id));},530,list);
+        UI.bucket.appendChild(ncont.element);       
+    },
+
+    duplicate_selected: function() {
+        for(var a in UI.selected){
+            var element = $(UI.selected[a]);
+            var doc = UI.session.get_doc(element.id);
+            if(doc.node.type == 'slice'){
+                var ndoc = create_slice(doc.node.src,doc.node.stop.frame);
+                ndoc.node.start.frame = doc.node.start.frame;
+                UI.session.save(ndoc);
+                var slice = new Slice(UI.session, ndoc);
+            }
+            if(doc.node.type == 'cont'){
+                var ndoc = create_cont();
+                ndoc.node.src = doc.node.src;
+                UI.session.save(ndoc);
+                var slice = new Cont(UI.session, ndoc);               
+            }
+            slice.x = parseInt(element.style.left)-30;
+            slice.y = parseInt(element.style.top)-30;
+            UI.bucket.appendChild(slice.element);
+        }
+        UI.sequence.do_reorder();
+    },
+
+    first: function() {
+        var element = $(UI.selected);
+        if (element && element.parentNode) {
+            UI.select(element.parentNode.children[0].id);
+        }
+    },
+
+    previous: function() {
+        var element = $(UI.selected);
+        if (element && element.previousSibling) {
+            UI.select(element.previousSibling.id);
+        }
+    },
+
+    next: function() {
+        var element = $(UI.selected);
+        if (element && element.nextSibling) {
+            UI.select(element.nextSibling.id);
+        }
+    },
+
+    last: function() {
+        var element = $(UI.selected);
+        if (element && element.parentNode) {
+            var i = element.parentNode.children.length - 1;
+            UI.select(element.parentNode.children[i].id);
+        }
+    },
+    
+
+    get_slice: function(_id) {
+        var element = $unparent(_id);
+        if (element) {
+            console.log(_id);
+            return element;
+        }
+        try {
+            var doc = UI.session.get_doc(_id);
+        }
+        catch (e) {
+            return null;
+        }
+        console.log(_id);
+        if(doc.node.type == 'slice'){
+        var slice = new Slice(UI.session, doc);
+        return slice.element;
+        }
+        if(doc.node.type == 'cont'){
+        var slice = new Cont(UI.session, doc);
+        return slice.element;
+        }
+    },
+
+    on_new_doc: function(doc) {
+        if (doc._id == UI.project_id) {
+            UI.doc = doc;
+
+            // FIXME: create default sequence if needed
+            if (!UI.doc.root_id) {
+                console.log('creating default sequence');
+                var seq = create_sequence();
+                UI.doc.root_id = seq._id;
+                UI.session.save(UI.doc, true);
+                UI.session.save(seq, true);
+                UI.session.delayed_commit();
+            } 
+
+            UI.sequence = new Sequence(UI.session, UI.session.get_doc(UI.doc.root_id));
+            UI.clips = new Clips(dmedia);
+            UI.player= new SequencePlayer(UI.session, UI.sequence.doc);
+            //closeAll();
+            
+        }
+    },
+
+    _roughcut: null,
+
+    get roughcut() {
+        if (UI._roughcut == null) {
+            UI._roughcut = new RoughCut(UI.session);
+        }
+        return UI._roughcut;
+    },
+
+    create_slice: function(id) {
+        UI.roughcut.show(id);
+        UI.roughcut.create_slice();
+    },
+
+    edit_slice: function(doc) {
+        UI.roughcut.show(doc.node.src);
+        UI.roughcut.edit_slice(doc);
+    },
+
+    hide_roughcut: function() {
+        UI.roughcut.hide();
+    },
+
+    // Key bindings
+    actions: {
+        // Left arrow
+        'Left': function(event) {
+            if (event.shiftKey) {
+                UI.first();
+            }
+            else {
+                UI.previous();
+            }
+            if (UI.player.active) {
+                UI.player.hold_and_resume();
+            }
+        },
+
+        // Right arrow
+        'Right': function(event) {
+            if (event.shiftKey) {
+                UI.last();
+            }
+            else {
+                UI.next();
+            }
+            if (UI.player.active) {
+                UI.player.hold_and_resume();
+            }
+        },
+        //G
+        'U+0047': function(event){
+            UI.group_selected();
+        },
+        //D
+ 	    'U+0044': function(event) {
+           UI.duplicate_selected();
+        },
+
+        // The David Fulde key
+        // aka Backspace aka Big Delete on a mac keyboard
+        'U+0008': function(event) {
+            UI.delete_selected();
+        },
+
+        // Delete
+        'U+007F': function(event) {
+            UI.delete_selected();
+        },
+
+        // SpaceBar
+        'U+0020': function(event) {
+            if (UI.roughcut.active) {
+                UI.roughcut.playpause();
+            }
+            else {
+                if (UI.player.active) {
+                    UI.player.playpause();
+                }
+                else {
+                    UI.player.show();
+                }
+            }
+        },
+
+        // Escape
+        'U+001B': function(event) {
+            if (UI.player.active) {
+                UI.player.hide();
+            } 
+        },
+    },
+
+    on_keyup: function(event) {
+        console.log('keyup ' + event.keyIdentifier);
+        if (document.activeElement != document.body) {
+            console.log('document body not focused');
+            return;
+        }
+        if (UI.orb.active) {
+            if (event.keyIdentifier == 'U+001B') {
+                UI.orb.toggle();
+            }
+            return;
+        }
+        var action = UI.actions[event.keyIdentifier];
+        if (action) {
+            $halt(event);
+            action(event);
+        }
+    },
+
+    render: function() {
+        $("render-btn").disabled = true;
+        $("render-btn").blur();
+        UI.orb.toggle();
+        console.log('render');
+    },
+
+    on_edit_hashed: function(project_id, node_id, intrinsic_id) {
+        console.log(['edit_hashed', project_id, node_id, intrinsic_id].join(' '));
+        // null for default settings_id:
+        Hub.send('hash_job', intrinsic_id, null);
+    },
+
+    on_job_hashed: function(intrinsic_id, settings_id, job_id) {
+        console.log(['job_hashed', intrinsic_id, settings_id, job_id].join(' '));
+        Hub.send('render_job', job_id);
+    },
+
+    on_job_rendered: function(job_id, file_id, link) {
+        console.log(['job_rendered', job_id, file_id, link].join(' '));
+        //UI.player.src = 'dmedia:' + file_id;
+        //UI.player.play();
+        $("render-btn").disabled = false;
+    },
+}
+
+function showShort(event){
+    console.log('show');
+    UI.orb.toggle();
+    document.getElementById("shortcuts").style.display = "block";
+    event.stopPropagation();
+    document.body.onclick = $bind(hideShort);
+}
+
+function hideShort(event){
+    console.log('hide');
+    document.getElementById("shortcuts").style.display = "none";
+    event.stopPropagation();
+}
+
+window.addEventListener('load', UI.init);
+
+

=== added file 'ui/novacut2.js'
--- ui/novacut2.js	1970-01-01 00:00:00 +0000
+++ ui/novacut2.js	2012-08-14 17:10:21 +0000
@@ -0,0 +1,416 @@
+"use strict";
+
+var novacut = new couch.Database('novacut-0');
+var dmedia = new couch.Database('dmedia-0');
+
+function parse_hash() {
+    return window.location.hash.slice(1).split('/');
+}
+
+function set_title(id, value) {
+    var el = $(id);
+    if (value) {
+        el.textContent = value;
+    }
+    else {
+        el.textContent = '';
+        el.appendChild($el('em', {textContent: 'Untitled'}));
+    }
+    return el;
+}
+
+
+function project_db(base, ver, project_id) {
+    var name = [base, ver, project_id.toLowerCase()].join('-');
+    return new couch.Database(name);
+}
+
+
+function novacut_project_db(project_id) {
+    return project_db('novacut', 0, project_id);
+}
+
+
+function dmedia_project_db(project_id) {
+    return project_db('dmedia', 0, project_id);
+}
+
+
+function frame_to_seconds(frame, framerate) {
+    return frame * framerate.denom / framerate.num;
+}
+
+
+function seconds_to_frame(seconds, framerate) {
+    return Math.round(seconds * framerate.num / framerate.denom);
+}
+
+
+
+function create_node(node) {
+    return {
+        '_id': couch.random_id(),
+        'ver': 0,
+        'type': 'novacut/node',
+        'time': couch.time(),
+        'node': node,
+    }
+}
+
+
+function create_slice(src, frame_count) {
+    var node = {
+        'type': 'slice',
+        'src': src,
+        'start': {'frame': 0},
+        'stop': {'frame': frame_count},
+        'stream': 'both',
+    }
+    return create_node(node);
+}
+
+function create_cont() {
+    var node = {
+        'type': 'cont',
+        'src': [],
+    }
+    return create_node(node);
+}
+
+function create_sequence() {
+    var node = {
+        'type': 'sequence',
+        'src': [],
+    }
+    var doc = create_node(node);
+    doc.doodle = [];
+    return doc;
+}
+
+
+function SlicePlayer() {
+    this.video = document.createElement('video');
+    //this.video.muted = true;
+    this.video.addEventListener('canplaythrough',
+        $bind(this.on_canplaythrough, this)
+    );
+    this.video.addEventListener('seeked',
+        $bind(this.on_seeked, this)
+    );
+    this.video.addEventListener('ended',
+        $bind(this.on_ended, this)
+    );
+
+    this.timeout_id = null;
+
+    this.playing = false;
+    this.ready = false;
+    this.ended = false;
+
+    this.onready = null;
+    this.onended = null;
+}
+SlicePlayer.prototype = {
+    log_event: function(name, point) {
+        var frame = seconds_to_frame(this.video.currentTime, this.clip.framerate);
+        var parts = [name, frame, point, frame == point];
+        console.log(parts.join(' '));
+    },
+
+    on_canplaythrough: function(event) {
+        this.seek(this.slice.node.start.frame);
+    },
+
+    on_seeked: function(event) {
+        //this.log_event('seeked', this.slice.node.start.frame);
+        if (!this.ready) {
+            this.ready = true;
+            if (this.onready) {
+                this.onready(this);
+            }
+        }
+    },
+
+    on_ended: function(event) {
+        this.video.pause();
+        this.clear_timeout();
+        //this.log_event('ended', this.slice.node.stop.frame);
+        this.ended = true;
+        if (this.onended) {
+            this.onended(this);
+        }
+    },
+
+    seek: function(frame) {
+        this.video.currentTime = this.frame_to_seconds(frame);
+    },
+
+    frame_to_seconds: function(frame) {
+        return frame_to_seconds(frame, this.clip.framerate);
+    },
+
+    clear_timeout: function() {
+        if (this.timeout_id != null) {
+            clearTimeout(this.timeout_id);
+            this.timeout_id = null;
+        }
+    },
+
+    set_timeout: function(duration) {
+        this.clear_timeout();
+        var callback = $bind(this.on_ended, this);
+        this.timeout_id = setTimeout(callback, duration);
+    },
+
+    playpause: function() {
+        if (this.playing) {
+            this.pause();
+        }
+        else {
+            this.play();
+        }
+    },
+
+    play: function() {
+        if (this.playing || !this.ready) {
+            return;
+        }
+        this.playing = true;
+        this.video.style.visibility = 'visible';
+        if (this.slice.node.stop.frame != this.clip.duration.frames) {     
+            var stop = this.frame_to_seconds(this.slice.node.stop.frame);
+            var duration = 1000 * (stop - this.video.currentTime);
+            this.set_timeout(duration);
+        }
+        this.video.play();
+    },
+
+    pause: function() {
+        if (!this.ready) {
+            return;
+        }
+        this.playing = false;
+        this.video.style.visibility = 'visible';
+        this.clear_timeout();
+        this.video.pause();
+    },
+    
+    stop: function() {
+        this.video.style.visibility = 'hidden';
+        this.video.pause();
+        this.clear_timeout();
+        this.ended = false;
+        this.ready = false;
+        this.playing = false;
+    },
+
+    load_slice: function(clip, slice) {
+        this.stop();
+        this.clip = clip;
+        this.slice = slice;
+        this.video.src = 'dmedia:' + this.clip._id;
+        //setTimeout($bind(this.do_load, this), 50);
+    },
+
+    do_load: function() {
+        this.video.src = 'dmedia:' + this.clip._id;
+    },
+}
+
+
+
+function SequencePlayer(session, doc) {
+    this.session = session;
+    this.doc = doc;
+
+    this.element = $el('div', {'id': 'player', 'class': 'hide'});
+
+    this.player1 = new SlicePlayer();
+    this.player1.i = 0;
+    this.player2 = new SlicePlayer();
+    this.player2.i = 1;
+
+    this.players = [this.player1, this.player2];
+    var on_ready = $bind(this.on_ready, this);
+    var on_ended = $bind(this.on_ended, this);
+    this.players.forEach(function(player) {
+        player.onready = on_ready;
+        player.onended = on_ended;
+        this.element.appendChild(player.video);
+    }, this);
+
+    this.ready = false;
+    this.playing = false;
+    this.active = false;
+
+    this.timeout_id == null
+
+    this.element.onclick = $bind(this.playpause, this);
+
+    document.body.appendChild(this.element);
+
+}
+SequencePlayer.prototype = {
+    show: function() {
+        console.log('show');
+        if (this.doc.node.src.length == 0) {
+            return;
+        }
+        $show(this.element);
+        this.active = true;
+        this.playing = true;
+        this.play_from_slice(UI.selected);
+    },
+
+    soft_hide: function() {
+        $hide(this.element);
+        console.assert(!this.playing);
+    },
+
+    soft_show: function() {
+        $show(this.element);
+        console.assert(!this.playing);
+    },
+
+    hide: function() {
+        console.log('hide');
+        $hide(this.element);
+        this.active = false;
+        this.stop();
+    },
+
+    playpause: function() {
+        if (this.playing) {
+            this.pause();  
+        }
+        else {
+            this.play();
+        }
+    },
+
+    hold: function() {
+        this.was_playing = this.playing;
+        this.playing = false;
+        this.activate_target(true);
+    },
+
+    hold_and_resume: function() {
+        if (this.timeout_id == null) {
+            console.log('first hold');
+            this.hold();
+        }
+        clearTimeout(this.timeout_id);
+        this.timeout_id = setTimeout($bind(this.on_timeout, this), 500);
+    },
+ 
+    on_timeout: function() {
+        console.log('timeout');
+        this.timeout_id = null;
+        this.resume();
+    },
+
+    resume: function() {
+        this.playing = this.was_playing;
+        if (UI.selected) {
+            this.play_from_slice(UI.selected);
+        }
+        else {
+            this.activate_target(true);
+        }
+    },
+
+    stop: function() {
+        this.players.forEach(function(player) {
+            player.stop();
+        });
+        this.ready = false;
+        this.target = null;
+    },
+
+    play: function() {
+        this.playing = true;
+        this.activate_target();
+    },
+
+    pause: function() {
+        this.playing = false;
+        this.activate_target();
+    },
+
+    play_from_slice: function(slice_id) {
+        if (this.doc.node.src.length == 0) {
+            return;
+        }
+        this.stop();
+        if (!slice_id) {
+            slice_id = UI.selected;
+        }
+        console.log('play_from_slice ' + slice_id);
+        var index = Math.max(0, this.doc.node.src.indexOf(slice_id));
+        this.load_slice(this.player1, index);
+        this.load_slice(this.player2, index + 1);
+    },
+
+    get_player: function(i) {
+        return this.players[i % this.players.length];
+    },
+
+    next_slice_index: function(player) {
+        return this.doc.node.src.indexOf(player.slice._id) + 1;
+    },
+
+    load_slice: function(player, index) {
+        var src = this.doc.node.src;
+        var slice_id = src[index % src.length];
+        var slice = this.session.get_doc(slice_id);
+        var clip = this.session.get_doc(slice.node.src);
+        player.load_slice(clip, slice);
+    },
+
+    on_ready: function(player) {
+        if (!this.ready) {
+            if (this.player1.ready && this.player2.ready) {
+                console.log('now ready');
+                this.ready = true;
+                this.target = this.players[0];
+                this.activate_target();
+            }
+        }
+        else if (this.target.ended) {
+            this.swap();
+        }
+    },
+
+    activate_target: function(no_select) {
+        if (!this.target) {
+            return;
+        }
+        if (this.playing) {
+            this.target.play();
+        }
+        else {
+            this.target.pause();
+        }
+        if (!no_select) {
+            UI.select(this.target.slice._id, true);
+        }
+    },
+
+    swap: function() {
+        var current = this.target;
+        var next = this.get_player(current.i + 1);
+        if (next.ready) {
+            this.target = next;
+            var index = this.next_slice_index(next);
+            this.activate_target();
+            this.load_slice(current, index);
+        } 
+    },
+
+    on_ended: function(player) {
+        this.swap();
+    },
+}
+
+
+